Home / 83,530,616.73-115,293,440.83-57,079,677.15

Finding the Fourth Proportional to 83,530,616.73, 115,293,440.83 and 57,079,677.15

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Solution

The fourth proportional to 83,530,616.73, 115,293,440.83 and 57,079,677.15 is: 78,784,434.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,530,616.73 : 115,293,440.83 = 57,079,677.15 : x
  2. Step 2: Convert to fraction form
    83,530,616.73/115,293,440.83 = 57,079,677.15/x
  3. Step 3: Cross multiply
    83,530,616.73x = 115,293,440.83 × 57,079,677.15
  4. Step 4: Simplify right side
    83,530,616.73x = 6,580,912,380,160,377
  5. Step 5: Solve for x
    x = 6,580,912,380,160,377/83,530,616.73
  6. Step 6: Final answer
    x = 78,784,434.24

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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.