Home / 86,033,043.30-129,049,447.70-39,949,712.90

Finding the Fourth Proportional to 86,033,043.30, 129,049,447.70 and 39,949,712.90

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Solution

The fourth proportional to 86,033,043.30, 129,049,447.70 and 39,949,712.90 is: 59,924,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,033,043.30 : 129,049,447.70 = 39,949,712.90 : x
  2. Step 2: Convert to fraction form
    86,033,043.30/129,049,447.70 = 39,949,712.90/x
  3. Step 3: Cross multiply
    86,033,043.30x = 129,049,447.70 × 39,949,712.90
  4. Step 4: Simplify right side
    86,033,043.30x = 5,155,488,384,673,570
  5. Step 5: Solve for x
    x = 5,155,488,384,673,570/86,033,043.30
  6. Step 6: Final answer
    x = 59,924,514.89

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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.