Home / 82,026,072.30-123,039,108.45-80,750,613.90

Finding the Fourth Proportional to 82,026,072.30, 123,039,108.45 and 80,750,613.90

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Solution

The fourth proportional to 82,026,072.30, 123,039,108.45 and 80,750,613.90 is: 121,125,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,026,072.30 : 123,039,108.45 = 80,750,613.90 : x
  2. Step 2: Convert to fraction form
    82,026,072.30/123,039,108.45 = 80,750,613.90/x
  3. Step 3: Cross multiply
    82,026,072.30x = 123,039,108.45 × 80,750,613.90
  4. Step 4: Simplify right side
    82,026,072.30x = 9,935,483,541,046,178
  5. Step 5: Solve for x
    x = 9,935,483,541,046,178/82,026,072.30
  6. Step 6: Final answer
    x = 121,125,920.85

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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.