Home / 129,345,591.25-178,473,034.60-73,587,756.52

Finding the Fourth Proportional to 129,345,591.25, 178,473,034.60 and 73,587,756.52

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Solution

The fourth proportional to 129,345,591.25, 178,473,034.60 and 73,587,756.52 is: 101,537,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,345,591.25 : 178,473,034.60 = 73,587,756.52 : x
  2. Step 2: Convert to fraction form
    129,345,591.25/178,473,034.60 = 73,587,756.52/x
  3. Step 3: Cross multiply
    129,345,591.25x = 178,473,034.60 × 73,587,756.52
  4. Step 4: Simplify right side
    129,345,591.25x = 13,133,430,215,569,456
  5. Step 5: Solve for x
    x = 13,133,430,215,569,456/129,345,591.25
  6. Step 6: Final answer
    x = 101,537,517.35

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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.