Home / 72,439,228.80-108,784,814.40-38,427,004.80

Finding the Fourth Proportional to 72,439,228.80, 108,784,814.40 and 38,427,004.80

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Solution

The fourth proportional to 72,439,228.80, 108,784,814.40 and 38,427,004.80 is: 57,707,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,439,228.80 : 108,784,814.40 = 38,427,004.80 : x
  2. Step 2: Convert to fraction form
    72,439,228.80/108,784,814.40 = 38,427,004.80/x
  3. Step 3: Cross multiply
    72,439,228.80x = 108,784,814.40 × 38,427,004.80
  4. Step 4: Simplify right side
    72,439,228.80x = 4,180,274,585,115,909
  5. Step 5: Solve for x
    x = 4,180,274,585,115,909/72,439,228.80
  6. Step 6: Final answer
    x = 57,707,331.43

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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.