Home / 83,667,129-125,115,425.10-79,585,662.12

Finding the Fourth Proportional to 83,667,129, 125,115,425.10 and 79,585,662.12

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Solution

The fourth proportional to 83,667,129, 125,115,425.10 and 79,585,662.12 is: 119,012,019.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,667,129 : 125,115,425.10 = 79,585,662.12 : x
  2. Step 2: Convert to fraction form
    83,667,129/125,115,425.10 = 79,585,662.12/x
  3. Step 3: Cross multiply
    83,667,129x = 125,115,425.10 × 79,585,662.12
  4. Step 4: Simplify right side
    83,667,129x = 9,957,393,948,008,768
  5. Step 5: Solve for x
    x = 9,957,393,948,008,768/83,667,129
  6. Step 6: Final answer
    x = 119,012,019.02

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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.