Home / 707,489,852.40-976,322,918.64-385,620,593.04

Finding the Fourth Proportional to 707,489,852.40, 976,322,918.64 and 385,620,593.04

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Solution

The fourth proportional to 707,489,852.40, 976,322,918.64 and 385,620,593.04 is: 532,149,290.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,489,852.40 : 976,322,918.64 = 385,620,593.04 : x
  2. Step 2: Convert to fraction form
    707,489,852.40/976,322,918.64 = 385,620,593.04/x
  3. Step 3: Cross multiply
    707,489,852.40x = 976,322,918.64 × 385,620,593.04
  4. Step 4: Simplify right side
    707,489,852.40x = 376,490,222,884,500,480
  5. Step 5: Solve for x
    x = 376,490,222,884,500,480/707,489,852.40
  6. Step 6: Final answer
    x = 532,149,290.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.