Home / 120,771,972.74-166,643,182.91-71,227,849.70

Finding the Fourth Proportional to 120,771,972.74, 166,643,182.91 and 71,227,849.70

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Solution

The fourth proportional to 120,771,972.74, 166,643,182.91 and 71,227,849.70 is: 98,281,375.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,771,972.74 : 166,643,182.91 = 71,227,849.70 : x
  2. Step 2: Convert to fraction form
    120,771,972.74/166,643,182.91 = 71,227,849.70/x
  3. Step 3: Cross multiply
    120,771,972.74x = 166,643,182.91 × 71,227,849.70
  4. Step 4: Simplify right side
    120,771,972.74x = 11,869,635,586,437,766
  5. Step 5: Solve for x
    x = 11,869,635,586,437,766/120,771,972.74
  6. Step 6: Final answer
    x = 98,281,375.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.