Home / 83,608,213.86-125,428,471.38-31,788,787.46

Finding the Fourth Proportional to 83,608,213.86, 125,428,471.38 and 31,788,787.46

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Solution

The fourth proportional to 83,608,213.86, 125,428,471.38 and 31,788,787.46 is: 47,689,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,608,213.86 : 125,428,471.38 = 31,788,787.46 : x
  2. Step 2: Convert to fraction form
    83,608,213.86/125,428,471.38 = 31,788,787.46/x
  3. Step 3: Cross multiply
    83,608,213.86x = 125,428,471.38 × 31,788,787.46
  4. Step 4: Simplify right side
    83,608,213.86x = 3,987,219,017,504,370
  5. Step 5: Solve for x
    x = 3,987,219,017,504,370/83,608,213.86
  6. Step 6: Final answer
    x = 47,689,321.82

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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.