Home / 31,539,154.70-47,234,082.45-21,386,809.10

Finding the Fourth Proportional to 31,539,154.70, 47,234,082.45 and 21,386,809.10

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Solution

The fourth proportional to 31,539,154.70, 47,234,082.45 and 21,386,809.10 is: 32,029,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539,154.70 : 47,234,082.45 = 21,386,809.10 : x
  2. Step 2: Convert to fraction form
    31,539,154.70/47,234,082.45 = 21,386,809.10/x
  3. Step 3: Cross multiply
    31,539,154.70x = 47,234,082.45 × 21,386,809.10
  4. Step 4: Simplify right side
    31,539,154.70x = 1,010,186,304,371,810.38
  5. Step 5: Solve for x
    x = 1,010,186,304,371,810.38/31,539,154.70
  6. Step 6: Final answer
    x = 32,029,593.50

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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.