Home / 72,439,231.30-108,784,818.15-38,427,007.30

Finding the Fourth Proportional to 72,439,231.30, 108,784,818.15 and 38,427,007.30

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Solution

The fourth proportional to 72,439,231.30, 108,784,818.15 and 38,427,007.30 is: 57,707,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,439,231.30 : 108,784,818.15 = 38,427,007.30 : x
  2. Step 2: Convert to fraction form
    72,439,231.30/108,784,818.15 = 38,427,007.30/x
  3. Step 3: Cross multiply
    72,439,231.30x = 108,784,818.15 × 38,427,007.30
  4. Step 4: Simplify right side
    72,439,231.30x = 4,180,275,001,179,222.50
  5. Step 5: Solve for x
    x = 4,180,275,001,179,222.50/72,439,231.30
  6. Step 6: Final answer
    x = 57,707,335.19

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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.