Home / 85,202,882.70-127,729,674.45-51,137,781.90

Finding the Fourth Proportional to 85,202,882.70, 127,729,674.45 and 51,137,781.90

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Solution

The fourth proportional to 85,202,882.70, 127,729,674.45 and 51,137,781.90 is: 76,661,869.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,202,882.70 : 127,729,674.45 = 51,137,781.90 : x
  2. Step 2: Convert to fraction form
    85,202,882.70/127,729,674.45 = 51,137,781.90/x
  3. Step 3: Cross multiply
    85,202,882.70x = 127,729,674.45 × 51,137,781.90
  4. Step 4: Simplify right side
    85,202,882.70x = 6,531,812,234,182,102
  5. Step 5: Solve for x
    x = 6,531,812,234,182,102/85,202,882.70
  6. Step 6: Final answer
    x = 76,661,869.03

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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.