Home / 82,377,345.70-123,566,018.55-20,966,385.70

Finding the Fourth Proportional to 82,377,345.70, 123,566,018.55 and 20,966,385.70

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Solution

The fourth proportional to 82,377,345.70, 123,566,018.55 and 20,966,385.70 is: 31,449,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,377,345.70 : 123,566,018.55 = 20,966,385.70 : x
  2. Step 2: Convert to fraction form
    82,377,345.70/123,566,018.55 = 20,966,385.70/x
  3. Step 3: Cross multiply
    82,377,345.70x = 123,566,018.55 × 20,966,385.70
  4. Step 4: Simplify right side
    82,377,345.70x = 2,590,732,804,332,654.50
  5. Step 5: Solve for x
    x = 2,590,732,804,332,654.50/82,377,345.70
  6. Step 6: Final answer
    x = 31,449,578.55

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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.