Home / 138,418,251.20-207,627,376.80-36,192,622.40

Finding the Fourth Proportional to 138,418,251.20, 207,627,376.80 and 36,192,622.40

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Solution

The fourth proportional to 138,418,251.20, 207,627,376.80 and 36,192,622.40 is: 54,288,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,418,251.20 : 207,627,376.80 = 36,192,622.40 : x
  2. Step 2: Convert to fraction form
    138,418,251.20/207,627,376.80 = 36,192,622.40/x
  3. Step 3: Cross multiply
    138,418,251.20x = 207,627,376.80 × 36,192,622.40
  4. Step 4: Simplify right side
    138,418,251.20x = 7,514,579,248,424,920
  5. Step 5: Solve for x
    x = 7,514,579,248,424,920/138,418,251.20
  6. Step 6: Final answer
    x = 54,288,933.60

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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.