Home / 71,680,828.10-107,521,242.15-39,432,200.90

Finding the Fourth Proportional to 71,680,828.10, 107,521,242.15 and 39,432,200.90

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Solution

The fourth proportional to 71,680,828.10, 107,521,242.15 and 39,432,200.90 is: 59,148,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,680,828.10 : 107,521,242.15 = 39,432,200.90 : x
  2. Step 2: Convert to fraction form
    71,680,828.10/107,521,242.15 = 39,432,200.90/x
  3. Step 3: Cross multiply
    71,680,828.10x = 107,521,242.15 × 39,432,200.90
  4. Step 4: Simplify right side
    71,680,828.10x = 4,239,799,221,476,348
  5. Step 5: Solve for x
    x = 4,239,799,221,476,348/71,680,828.10
  6. Step 6: Final answer
    x = 59,148,301.35

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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.