1 Exhibit 99 TRW Inc. and Subsidiaries Computation of Ratio of Earnings to Fixed Charges - Unaudited (In millions except ratio data) Six Months Years Ended December 31 ended ------------------------------------------------------------------ June 30, 1995 1994 1993 1992 1991 1990 ------------- -------- -------- -------- -------- -------- Earnings(loss) before income taxes $386.6 $534.5 $359.1 $347.6 $(129.4)(A) $343.1 Unconsolidated affiliates 1.4 (0.6) 0.7 (0.9) (1.0) (13.2) Minority earnings 4.3 5.2 5.7 2.6 (7.8) (0.5) Fixed charges excluding capitalized interest 78.6 160.9 194.0 227.1 254.3 252.0 ---- ----- ----- ----- ----- ----- Earnings $470.9 $700.0 $559.5 $576.4 $116.1 $581.4 ------ ------ ------ ------ ------ ------ Fixed Charges: Interest expense $48.4 $104.8 $137.8 $162.9 $189.6 $186.9 Capitalized interest 2.5 6.6 7.9 12.7 10.1 7.6 Portion of rents representa- tive of interest factor 29.7 54.7 54.0 64.0 64.4 64.6 Interest expense of uncon- solidated affiliates 0.5 1.4 2.2 0.2 0.3 0.5 --- --- --- --- --- --- Total fixed charges $81.1 $167.5 $201.9 $239.8 $264.4 $259.6 ----- ------ ------ ------ ------ ------ Ratio of earnings to fixed charges 5.8x 4.2x 2.8x 2.4x 0.4x(A) 2.2x --- --- --- --- --- --- <FN> (A) The 1991 loss before income taxes of $129.4 million includes a charge of $343 million to cover costs associated with divestment and restructuring activities. Excluding this charge, the ratio of earnings to fixed charges would have been 1.7x.