Home / 87,156,125.20-130,734,187.80-80,586,960.40

Finding the Fourth Proportional to 87,156,125.20, 130,734,187.80 and 80,586,960.40

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Solution

The fourth proportional to 87,156,125.20, 130,734,187.80 and 80,586,960.40 is: 120,880,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,156,125.20 : 130,734,187.80 = 80,586,960.40 : x
  2. Step 2: Convert to fraction form
    87,156,125.20/130,734,187.80 = 80,586,960.40/x
  3. Step 3: Cross multiply
    87,156,125.20x = 130,734,187.80 × 80,586,960.40
  4. Step 4: Simplify right side
    87,156,125.20x = 10,535,470,815,164,764
  5. Step 5: Solve for x
    x = 10,535,470,815,164,764/87,156,125.20
  6. Step 6: Final answer
    x = 120,880,440.60

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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.