Home / 87,168,428.20-130,516,712.70-68,294,060.20

Finding the Fourth Proportional to 87,168,428.20, 130,516,712.70 and 68,294,060.20

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Solution

The fourth proportional to 87,168,428.20, 130,516,712.70 and 68,294,060.20 is: 102,256,245.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,168,428.20 : 130,516,712.70 = 68,294,060.20 : x
  2. Step 2: Convert to fraction form
    87,168,428.20/130,516,712.70 = 68,294,060.20/x
  3. Step 3: Cross multiply
    87,168,428.20x = 130,516,712.70 × 68,294,060.20
  4. Step 4: Simplify right side
    87,168,428.20x = 8,913,516,234,239,905
  5. Step 5: Solve for x
    x = 8,913,516,234,239,905/87,168,428.20
  6. Step 6: Final answer
    x = 102,256,245.96

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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.