Home / 86,062,639.62-129,081,347.08-42,331,659.78

Finding the Fourth Proportional to 86,062,639.62, 129,081,347.08 and 42,331,659.78

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Solution

The fourth proportional to 86,062,639.62, 129,081,347.08 and 42,331,659.78 is: 63,491,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,062,639.62 : 129,081,347.08 = 42,331,659.78 : x
  2. Step 2: Convert to fraction form
    86,062,639.62/129,081,347.08 = 42,331,659.78/x
  3. Step 3: Cross multiply
    86,062,639.62x = 129,081,347.08 × 42,331,659.78
  4. Step 4: Simplify right side
    86,062,639.62x = 5,464,227,668,912,882
  5. Step 5: Solve for x
    x = 5,464,227,668,912,882/86,062,639.62
  6. Step 6: Final answer
    x = 63,491,286.03

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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.