Home / 107,892,001.20-161,838,001.80-71,541,436.80

Finding the Fourth Proportional to 107,892,001.20, 161,838,001.80 and 71,541,436.80

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Solution

The fourth proportional to 107,892,001.20, 161,838,001.80 and 71,541,436.80 is: 107,312,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,892,001.20 : 161,838,001.80 = 71,541,436.80 : x
  2. Step 2: Convert to fraction form
    107,892,001.20/161,838,001.80 = 71,541,436.80/x
  3. Step 3: Cross multiply
    107,892,001.20x = 161,838,001.80 × 71,541,436.80
  4. Step 4: Simplify right side
    107,892,001.20x = 11,578,123,177,612,986
  5. Step 5: Solve for x
    x = 11,578,123,177,612,986/107,892,001.20
  6. Step 6: Final answer
    x = 107,312,155.20

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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.