Home / 81,999,821.84-123,045,132.76-49,129,614.76

Finding the Fourth Proportional to 81,999,821.84, 123,045,132.76 and 49,129,614.76

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Solution

The fourth proportional to 81,999,821.84, 123,045,132.76 and 49,129,614.76 is: 73,721,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,999,821.84 : 123,045,132.76 = 49,129,614.76 : x
  2. Step 2: Convert to fraction form
    81,999,821.84/123,045,132.76 = 49,129,614.76/x
  3. Step 3: Cross multiply
    81,999,821.84x = 123,045,132.76 × 49,129,614.76
  4. Step 4: Simplify right side
    81,999,821.84x = 6,045,159,970,591,856
  5. Step 5: Solve for x
    x = 6,045,159,970,591,856/81,999,821.84
  6. Step 6: Final answer
    x = 73,721,623.23

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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.