Home / 75,136,813.20-112,789,200.60-58,172,691.60

Finding the Fourth Proportional to 75,136,813.20, 112,789,200.60 and 58,172,691.60

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Solution

The fourth proportional to 75,136,813.20, 112,789,200.60 and 58,172,691.60 is: 87,324,057.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136,813.20 : 112,789,200.60 = 58,172,691.60 : x
  2. Step 2: Convert to fraction form
    75,136,813.20/112,789,200.60 = 58,172,691.60/x
  3. Step 3: Cross multiply
    75,136,813.20x = 112,789,200.60 × 58,172,691.60
  4. Step 4: Simplify right side
    75,136,813.20x = 6,561,251,382,314,335
  5. Step 5: Solve for x
    x = 6,561,251,382,314,335/75,136,813.20
  6. Step 6: Final answer
    x = 87,324,057.31

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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.