Home / 82,487,035.53-123,542,077.50-39,386,426.85

Finding the Fourth Proportional to 82,487,035.53, 123,542,077.50 and 39,386,426.85

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Solution

The fourth proportional to 82,487,035.53, 123,542,077.50 and 39,386,426.85 is: 58,989,645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,487,035.53 : 123,542,077.50 = 39,386,426.85 : x
  2. Step 2: Convert to fraction form
    82,487,035.53/123,542,077.50 = 39,386,426.85/x
  3. Step 3: Cross multiply
    82,487,035.53x = 123,542,077.50 × 39,386,426.85
  4. Step 4: Simplify right side
    82,487,035.53x = 4,865,880,998,350,781
  5. Step 5: Solve for x
    x = 4,865,880,998,350,781/82,487,035.53
  6. Step 6: Final answer
    x = 58,989,645.67

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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.