Home / 87,239,428.40-130,607,200.20-53,227,204.40

Finding the Fourth Proportional to 87,239,428.40, 130,607,200.20 and 53,227,204.40

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Solution

The fourth proportional to 87,239,428.40, 130,607,200.20 and 53,227,204.40 is: 79,687,089.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,239,428.40 : 130,607,200.20 = 53,227,204.40 : x
  2. Step 2: Convert to fraction form
    87,239,428.40/130,607,200.20 = 53,227,204.40/x
  3. Step 3: Cross multiply
    87,239,428.40x = 130,607,200.20 × 53,227,204.40
  4. Step 4: Simplify right side
    87,239,428.40x = 6,951,856,141,157,121
  5. Step 5: Solve for x
    x = 6,951,856,141,157,121/87,239,428.40
  6. Step 6: Final answer
    x = 79,687,089.53

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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.