Home / 138,442,003.68-207,647,142.48-36,215,908.32

Finding the Fourth Proportional to 138,442,003.68, 207,647,142.48 and 36,215,908.32

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Solution

The fourth proportional to 138,442,003.68, 207,647,142.48 and 36,215,908.32 is: 54,319,712.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,442,003.68 : 207,647,142.48 = 36,215,908.32 : x
  2. Step 2: Convert to fraction form
    138,442,003.68/207,647,142.48 = 36,215,908.32/x
  3. Step 3: Cross multiply
    138,442,003.68x = 207,647,142.48 × 36,215,908.32
  4. Step 4: Simplify right side
    138,442,003.68x = 7,520,129,874,965,657
  5. Step 5: Solve for x
    x = 7,520,129,874,965,657/138,442,003.68
  6. Step 6: Final answer
    x = 54,319,712.77

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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.