Home / 81,098,066.16-121,992,306.48-73,513,178.64

Finding the Fourth Proportional to 81,098,066.16, 121,992,306.48 and 73,513,178.64

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Solution

The fourth proportional to 81,098,066.16, 121,992,306.48 and 73,513,178.64 is: 110,582,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,098,066.16 : 121,992,306.48 = 73,513,178.64 : x
  2. Step 2: Convert to fraction form
    81,098,066.16/121,992,306.48 = 73,513,178.64/x
  3. Step 3: Cross multiply
    81,098,066.16x = 121,992,306.48 × 73,513,178.64
  4. Step 4: Simplify right side
    81,098,066.16x = 8,968,042,218,969,870
  5. Step 5: Solve for x
    x = 8,968,042,218,969,870/81,098,066.16
  6. Step 6: Final answer
    x = 110,582,688.88

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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.