Home / 83,002,874.40-124,504,311.60-81,869,133.60

Finding the Fourth Proportional to 83,002,874.40, 124,504,311.60 and 81,869,133.60

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Solution

The fourth proportional to 83,002,874.40, 124,504,311.60 and 81,869,133.60 is: 122,803,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,002,874.40 : 124,504,311.60 = 81,869,133.60 : x
  2. Step 2: Convert to fraction form
    83,002,874.40/124,504,311.60 = 81,869,133.60/x
  3. Step 3: Cross multiply
    83,002,874.40x = 124,504,311.60 × 81,869,133.60
  4. Step 4: Simplify right side
    83,002,874.40x = 10,193,060,120,156,428
  5. Step 5: Solve for x
    x = 10,193,060,120,156,428/83,002,874.40
  6. Step 6: Final answer
    x = 122,803,700.40

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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.