Home / 82,515,006.72-123,729,984-37,037,819.52

Finding the Fourth Proportional to 82,515,006.72, 123,729,984 and 37,037,819.52

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Solution

The fourth proportional to 82,515,006.72, 123,729,984 and 37,037,819.52 is: 55,537,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,515,006.72 : 123,729,984 = 37,037,819.52 : x
  2. Step 2: Convert to fraction form
    82,515,006.72/123,729,984 = 37,037,819.52/x
  3. Step 3: Cross multiply
    82,515,006.72x = 123,729,984 × 37,037,819.52
  4. Step 4: Simplify right side
    82,515,006.72x = 4,582,688,816,604,488
  5. Step 5: Solve for x
    x = 4,582,688,816,604,488/82,515,006.72
  6. Step 6: Final answer
    x = 55,537,640.95

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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.