Home / 82,002,068.80-122,861,385.60-38,778,200.80

Finding the Fourth Proportional to 82,002,068.80, 122,861,385.60 and 38,778,200.80

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Solution

The fourth proportional to 82,002,068.80, 122,861,385.60 and 38,778,200.80 is: 58,100,283.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,002,068.80 : 122,861,385.60 = 38,778,200.80 : x
  2. Step 2: Convert to fraction form
    82,002,068.80/122,861,385.60 = 38,778,200.80/x
  3. Step 3: Cross multiply
    82,002,068.80x = 122,861,385.60 × 38,778,200.80
  4. Step 4: Simplify right side
    82,002,068.80x = 4,764,343,481,363,028
  5. Step 5: Solve for x
    x = 4,764,343,481,363,028/82,002,068.80
  6. Step 6: Final answer
    x = 58,100,283.95

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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.