Home / 87,156,156.40-130,734,234.60-53,143,932.40

Finding the Fourth Proportional to 87,156,156.40, 130,734,234.60 and 53,143,932.40

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Solution

The fourth proportional to 87,156,156.40, 130,734,234.60 and 53,143,932.40 is: 79,715,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,156,156.40 : 130,734,234.60 = 53,143,932.40 : x
  2. Step 2: Convert to fraction form
    87,156,156.40/130,734,234.60 = 53,143,932.40/x
  3. Step 3: Cross multiply
    87,156,156.40x = 130,734,234.60 × 53,143,932.40
  4. Step 4: Simplify right side
    87,156,156.40x = 6,947,731,325,948,141
  5. Step 5: Solve for x
    x = 6,947,731,325,948,141/87,156,156.40
  6. Step 6: Final answer
    x = 79,715,898.60

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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.