Home / 52,156,972.80-78,235,459.20-38,720,044.80

Finding the Fourth Proportional to 52,156,972.80, 78,235,459.20 and 38,720,044.80

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Solution

The fourth proportional to 52,156,972.80, 78,235,459.20 and 38,720,044.80 is: 58,080,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,156,972.80 : 78,235,459.20 = 38,720,044.80 : x
  2. Step 2: Convert to fraction form
    52,156,972.80/78,235,459.20 = 38,720,044.80/x
  3. Step 3: Cross multiply
    52,156,972.80x = 78,235,459.20 × 38,720,044.80
  4. Step 4: Simplify right side
    52,156,972.80x = 3,029,280,485,172,572
  5. Step 5: Solve for x
    x = 3,029,280,485,172,572/52,156,972.80
  6. Step 6: Final answer
    x = 58,080,067.20

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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.