Home / 312,517,294.52-468,730,309.31-91,129,142.55

Finding the Fourth Proportional to 312,517,294.52, 468,730,309.31 and 91,129,142.55

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Solution

The fourth proportional to 312,517,294.52, 468,730,309.31 and 91,129,142.55 is: 136,680,407.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,517,294.52 : 468,730,309.31 = 91,129,142.55 : x
  2. Step 2: Convert to fraction form
    312,517,294.52/468,730,309.31 = 91,129,142.55/x
  3. Step 3: Cross multiply
    312,517,294.52x = 468,730,309.31 × 91,129,142.55
  4. Step 4: Simplify right side
    312,517,294.52x = 42,714,991,176,260,400
  5. Step 5: Solve for x
    x = 42,714,991,176,260,400/312,517,294.52
  6. Step 6: Final answer
    x = 136,680,407.54

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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.