Home / 138,701,701.77-207,891,414.50-52,385,185.77

Finding the Fourth Proportional to 138,701,701.77, 207,891,414.50 and 52,385,185.77

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Solution

The fourth proportional to 138,701,701.77, 207,891,414.50 and 52,385,185.77 is: 78,516,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,701,701.77 : 207,891,414.50 = 52,385,185.77 : x
  2. Step 2: Convert to fraction form
    138,701,701.77/207,891,414.50 = 52,385,185.77/x
  3. Step 3: Cross multiply
    138,701,701.77x = 207,891,414.50 × 52,385,185.77
  4. Step 4: Simplify right side
    138,701,701.77x = 10,890,430,368,308,646
  5. Step 5: Solve for x
    x = 10,890,430,368,308,646/138,701,701.77
  6. Step 6: Final answer
    x = 78,516,919.61

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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.