Home / 87,160,605.64-120,294,712.34-66,218,176.04

Finding the Fourth Proportional to 87,160,605.64, 120,294,712.34 and 66,218,176.04

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Solution

The fourth proportional to 87,160,605.64, 120,294,712.34 and 66,218,176.04 is: 91,391,017.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,160,605.64 : 120,294,712.34 = 66,218,176.04 : x
  2. Step 2: Convert to fraction form
    87,160,605.64/120,294,712.34 = 66,218,176.04/x
  3. Step 3: Cross multiply
    87,160,605.64x = 120,294,712.34 × 66,218,176.04
  4. Step 4: Simplify right side
    87,160,605.64x = 7,965,696,438,411,280
  5. Step 5: Solve for x
    x = 7,965,696,438,411,280/87,160,605.64
  6. Step 6: Final answer
    x = 91,391,017.54

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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.