Home / 72,439,600.80-108,785,372.40-38,427,376.80

Finding the Fourth Proportional to 72,439,600.80, 108,785,372.40 and 38,427,376.80

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Solution

The fourth proportional to 72,439,600.80, 108,785,372.40 and 38,427,376.80 is: 57,707,889.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,439,600.80 : 108,785,372.40 = 38,427,376.80 : x
  2. Step 2: Convert to fraction form
    72,439,600.80/108,785,372.40 = 38,427,376.80/x
  3. Step 3: Cross multiply
    72,439,600.80x = 108,785,372.40 × 38,427,376.80
  4. Step 4: Simplify right side
    72,439,600.80x = 4,180,336,495,543,120
  5. Step 5: Solve for x
    x = 4,180,336,495,543,120/72,439,600.80
  6. Step 6: Final answer
    x = 57,707,889.74

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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.