Home / 90,358,679.43-124,696,321.38-49,105,604.61

Finding the Fourth Proportional to 90,358,679.43, 124,696,321.38 and 49,105,604.61

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Solution

The fourth proportional to 90,358,679.43, 124,696,321.38 and 49,105,604.61 is: 67,766,464.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,358,679.43 : 124,696,321.38 = 49,105,604.61 : x
  2. Step 2: Convert to fraction form
    90,358,679.43/124,696,321.38 = 49,105,604.61/x
  3. Step 3: Cross multiply
    90,358,679.43x = 124,696,321.38 × 49,105,604.61
  4. Step 4: Simplify right side
    90,358,679.43x = 6,123,288,254,007,769
  5. Step 5: Solve for x
    x = 6,123,288,254,007,769/90,358,679.43
  6. Step 6: Final answer
    x = 67,766,464.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.