Home / 90,251,897.25-139,517,920.13

Finding the Third Proportional to 90,251,897.25 and 139,517,920.13

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Solution

The third proportional to 90,251,897.25 and 139,517,920.13 is: 215,676,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,251,897.25 : 139,517,920.13 = 139,517,920.13 : x
  2. Step 2: Convert to fraction form
    90,251,897.25/139,517,920.13 = 139,517,920.13/x
  3. Step 3: Cross multiply
    90,251,897.25x = 139,517,920.13 × 139,517,920.13
  4. Step 4: Simplify right side
    90,251,897.25x = 19,465,250,036,005,880
  5. Step 5: Solve for x
    x = 19,465,250,036,005,880/90,251,897.25
  6. Step 6: Final answer
    x = 215,676,906.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.