Home / 151,942,791.38-209,683,432.70-89,220,276.29

Finding the Fourth Proportional to 151,942,791.38, 209,683,432.70 and 89,220,276.29

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Solution

The fourth proportional to 151,942,791.38, 209,683,432.70 and 89,220,276.29 is: 123,125,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,942,791.38 : 209,683,432.70 = 89,220,276.29 : x
  2. Step 2: Convert to fraction form
    151,942,791.38/209,683,432.70 = 89,220,276.29/x
  3. Step 3: Cross multiply
    151,942,791.38x = 209,683,432.70 × 89,220,276.29
  4. Step 4: Simplify right side
    151,942,791.38x = 18,708,013,799,844,616
  5. Step 5: Solve for x
    x = 18,708,013,799,844,616/151,942,791.38
  6. Step 6: Final answer
    x = 123,125,379.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.