Home / 101,280,042.28-139,767,129.36-54,870,296.20

Finding the Fourth Proportional to 101,280,042.28, 139,767,129.36 and 54,870,296.20

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Solution

The fourth proportional to 101,280,042.28, 139,767,129.36 and 54,870,296.20 is: 75,721,372.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,280,042.28 : 139,767,129.36 = 54,870,296.20 : x
  2. Step 2: Convert to fraction form
    101,280,042.28/139,767,129.36 = 54,870,296.20/x
  3. Step 3: Cross multiply
    101,280,042.28x = 139,767,129.36 × 54,870,296.20
  4. Step 4: Simplify right side
    101,280,042.28x = 7,669,063,787,006,918
  5. Step 5: Solve for x
    x = 7,669,063,787,006,918/101,280,042.28
  6. Step 6: Final answer
    x = 75,721,372.29

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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.