Home / 82,661,069.52-123,991,707.96-39,520,132.56

Finding the Fourth Proportional to 82,661,069.52, 123,991,707.96 and 39,520,132.56

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Solution

The fourth proportional to 82,661,069.52, 123,991,707.96 and 39,520,132.56 is: 59,280,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,661,069.52 : 123,991,707.96 = 39,520,132.56 : x
  2. Step 2: Convert to fraction form
    82,661,069.52/123,991,707.96 = 39,520,132.56/x
  3. Step 3: Cross multiply
    82,661,069.52x = 123,991,707.96 × 39,520,132.56
  4. Step 4: Simplify right side
    82,661,069.52x = 4,900,168,734,920,007
  5. Step 5: Solve for x
    x = 4,900,168,734,920,007/82,661,069.52
  6. Step 6: Final answer
    x = 59,280,248.41

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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.