Home / 83,608,207.75-125,428,462.21-31,788,781.21

Finding the Fourth Proportional to 83,608,207.75, 125,428,462.21 and 31,788,781.21

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Solution

The fourth proportional to 83,608,207.75, 125,428,462.21 and 31,788,781.21 is: 47,689,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,608,207.75 : 125,428,462.21 = 31,788,781.21 : x
  2. Step 2: Convert to fraction form
    83,608,207.75/125,428,462.21 = 31,788,781.21/x
  3. Step 3: Cross multiply
    83,608,207.75x = 125,428,462.21 × 31,788,781.21
  4. Step 4: Simplify right side
    83,608,207.75x = 3,987,217,942,102,103.50
  5. Step 5: Solve for x
    x = 3,987,217,942,102,103.50/83,608,207.75
  6. Step 6: Final answer
    x = 47,689,312.44

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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.