Home / 87,160,604.64-120,294,710.96-66,218,175.04

Finding the Fourth Proportional to 87,160,604.64, 120,294,710.96 and 66,218,175.04

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Solution

The fourth proportional to 87,160,604.64, 120,294,710.96 and 66,218,175.04 is: 91,391,016.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,160,604.64 : 120,294,710.96 = 66,218,175.04 : x
  2. Step 2: Convert to fraction form
    87,160,604.64/120,294,710.96 = 66,218,175.04/x
  3. Step 3: Cross multiply
    87,160,604.64x = 120,294,710.96 × 66,218,175.04
  4. Step 4: Simplify right side
    87,160,604.64x = 7,965,696,226,735,486
  5. Step 5: Solve for x
    x = 7,965,696,226,735,486/87,160,604.64
  6. Step 6: Final answer
    x = 91,391,016.16

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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.