Home / 25,456,763.76-38,185,145.64-20,959,591.92

Finding the Fourth Proportional to 25,456,763.76, 38,185,145.64 and 20,959,591.92

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Solution

The fourth proportional to 25,456,763.76, 38,185,145.64 and 20,959,591.92 is: 31,439,387.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,456,763.76 : 38,185,145.64 = 20,959,591.92 : x
  2. Step 2: Convert to fraction form
    25,456,763.76/38,185,145.64 = 20,959,591.92/x
  3. Step 3: Cross multiply
    25,456,763.76x = 38,185,145.64 × 20,959,591.92
  4. Step 4: Simplify right side
    25,456,763.76x = 800,345,070,020,167.25
  5. Step 5: Solve for x
    x = 800,345,070,020,167.25/25,456,763.76
  6. Step 6: Final answer
    x = 31,439,387.88

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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.