Home / 82,373,501.70-123,560,252.55-67,068,000.90

Finding the Fourth Proportional to 82,373,501.70, 123,560,252.55 and 67,068,000.90

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Solution

The fourth proportional to 82,373,501.70, 123,560,252.55 and 67,068,000.90 is: 100,602,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,373,501.70 : 123,560,252.55 = 67,068,000.90 : x
  2. Step 2: Convert to fraction form
    82,373,501.70/123,560,252.55 = 67,068,000.90/x
  3. Step 3: Cross multiply
    82,373,501.70x = 123,560,252.55 × 67,068,000.90
  4. Step 4: Simplify right side
    82,373,501.70x = 8,286,939,129,227,627
  5. Step 5: Solve for x
    x = 8,286,939,129,227,627/82,373,501.70
  6. Step 6: Final answer
    x = 100,602,001.35

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Similar ratio
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1.5x scale

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.