Home / 87,156,097.20-130,734,145.80-80,586,932.40

Finding the Fourth Proportional to 87,156,097.20, 130,734,145.80 and 80,586,932.40

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Solution

The fourth proportional to 87,156,097.20, 130,734,145.80 and 80,586,932.40 is: 120,880,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,156,097.20 : 130,734,145.80 = 80,586,932.40 : x
  2. Step 2: Convert to fraction form
    87,156,097.20/130,734,145.80 = 80,586,932.40/x
  3. Step 3: Cross multiply
    87,156,097.20x = 130,734,145.80 × 80,586,932.40
  4. Step 4: Simplify right side
    87,156,097.20x = 10,535,463,769,956,344
  5. Step 5: Solve for x
    x = 10,535,463,769,956,344/87,156,097.20
  6. Step 6: Final answer
    x = 120,880,398.60

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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.