Home / 129,024,272.40-193,387,109.40-52,309,366.80

Finding the Fourth Proportional to 129,024,272.40, 193,387,109.40 and 52,309,366.80

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Solution

The fourth proportional to 129,024,272.40, 193,387,109.40 and 52,309,366.80 is: 78,403,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024,272.40 : 193,387,109.40 = 52,309,366.80 : x
  2. Step 2: Convert to fraction form
    129,024,272.40/193,387,109.40 = 52,309,366.80/x
  3. Step 3: Cross multiply
    129,024,272.40x = 193,387,109.40 × 52,309,366.80
  4. Step 4: Simplify right side
    129,024,272.40x = 10,115,957,239,996,328
  5. Step 5: Solve for x
    x = 10,115,957,239,996,328/129,024,272.40
  6. Step 6: Final answer
    x = 78,403,520.92

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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.