Home / 72,228,149.28-108,317,029.68-31,816,588.32

Finding the Fourth Proportional to 72,228,149.28, 108,317,029.68 and 31,816,588.32

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Solution

The fourth proportional to 72,228,149.28, 108,317,029.68 and 31,816,588.32 is: 47,713,784.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,228,149.28 : 108,317,029.68 = 31,816,588.32 : x
  2. Step 2: Convert to fraction form
    72,228,149.28/108,317,029.68 = 31,816,588.32/x
  3. Step 3: Cross multiply
    72,228,149.28x = 108,317,029.68 × 31,816,588.32
  4. Step 4: Simplify right side
    72,228,149.28x = 3,446,278,341,373,781.50
  5. Step 5: Solve for x
    x = 3,446,278,341,373,781.50/72,228,149.28
  6. Step 6: Final answer
    x = 47,713,784.39

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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.