Home / 99,680,020.40-149,359,067.40-56,420,577.20

Finding the Fourth Proportional to 99,680,020.40, 149,359,067.40 and 56,420,577.20

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Solution

The fourth proportional to 99,680,020.40, 149,359,067.40 and 56,420,577.20 is: 84,539,757.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,680,020.40 : 149,359,067.40 = 56,420,577.20 : x
  2. Step 2: Convert to fraction form
    99,680,020.40/149,359,067.40 = 56,420,577.20/x
  3. Step 3: Cross multiply
    99,680,020.40x = 149,359,067.40 × 56,420,577.20
  4. Step 4: Simplify right side
    99,680,020.40x = 8,426,924,792,761,704
  5. Step 5: Solve for x
    x = 8,426,924,792,761,704/99,680,020.40
  6. Step 6: Final answer
    x = 84,539,757.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.