Home / 138,794,758.32-207,965,017.52-84,041,507.46

Finding the Fourth Proportional to 138,794,758.32, 207,965,017.52 and 84,041,507.46

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Solution

The fourth proportional to 138,794,758.32, 207,965,017.52 and 84,041,507.46 is: 125,924,737.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,794,758.32 : 207,965,017.52 = 84,041,507.46 : x
  2. Step 2: Convert to fraction form
    138,794,758.32/207,965,017.52 = 84,041,507.46/x
  3. Step 3: Cross multiply
    138,794,758.32x = 207,965,017.52 × 84,041,507.46
  4. Step 4: Simplify right side
    138,794,758.32x = 17,477,693,571,326,110
  5. Step 5: Solve for x
    x = 17,477,693,571,326,110/138,794,758.32
  6. Step 6: Final answer
    x = 125,924,737.96

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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.