Home / 72,491,643.20-108,796,951.20-71,924,772.80

Finding the Fourth Proportional to 72,491,643.20, 108,796,951.20 and 71,924,772.80

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Solution

The fourth proportional to 72,491,643.20, 108,796,951.20 and 71,924,772.80 is: 107,946,180.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,491,643.20 : 108,796,951.20 = 71,924,772.80 : x
  2. Step 2: Convert to fraction form
    72,491,643.20/108,796,951.20 = 71,924,772.80/x
  3. Step 3: Cross multiply
    72,491,643.20x = 108,796,951.20 × 71,924,772.80
  4. Step 4: Simplify right side
    72,491,643.20x = 7,825,195,996,392,687
  5. Step 5: Solve for x
    x = 7,825,195,996,392,687/72,491,643.20
  6. Step 6: Final answer
    x = 107,946,180.43

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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.