Home / 107,892,002.20-161,838,003.30-71,541,437.80

Finding the Fourth Proportional to 107,892,002.20, 161,838,003.30 and 71,541,437.80

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Solution

The fourth proportional to 107,892,002.20, 161,838,003.30 and 71,541,437.80 is: 107,312,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,892,002.20 : 161,838,003.30 = 71,541,437.80 : x
  2. Step 2: Convert to fraction form
    107,892,002.20/161,838,003.30 = 71,541,437.80/x
  3. Step 3: Cross multiply
    107,892,002.20x = 161,838,003.30 × 71,541,437.80
  4. Step 4: Simplify right side
    107,892,002.20x = 11,578,123,446,763,146
  5. Step 5: Solve for x
    x = 11,578,123,446,763,146/107,892,002.20
  6. Step 6: Final answer
    x = 107,312,156.70

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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.