Home / 138,442,018.68-207,647,164.98-36,215,923.32

Finding the Fourth Proportional to 138,442,018.68, 207,647,164.98 and 36,215,923.32

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Solution

The fourth proportional to 138,442,018.68, 207,647,164.98 and 36,215,923.32 is: 54,319,735.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,442,018.68 : 207,647,164.98 = 36,215,923.32 : x
  2. Step 2: Convert to fraction form
    138,442,018.68/207,647,164.98 = 36,215,923.32/x
  3. Step 3: Cross multiply
    138,442,018.68x = 207,647,164.98 × 36,215,923.32
  4. Step 4: Simplify right side
    138,442,018.68x = 7,520,133,804,531,069
  5. Step 5: Solve for x
    x = 7,520,133,804,531,069/138,442,018.68
  6. Step 6: Final answer
    x = 54,319,735.27

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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.