Home / 625,151,999.20-937,727,998.80-319,387,237.60

Finding the Fourth Proportional to 625,151,999.20, 937,727,998.80 and 319,387,237.60

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Solution

The fourth proportional to 625,151,999.20, 937,727,998.80 and 319,387,237.60 is: 479,080,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,151,999.20 : 937,727,998.80 = 319,387,237.60 : x
  2. Step 2: Convert to fraction form
    625,151,999.20/937,727,998.80 = 319,387,237.60/x
  3. Step 3: Cross multiply
    625,151,999.20x = 937,727,998.80 × 319,387,237.60
  4. Step 4: Simplify right side
    625,151,999.20x = 299,498,355,156,908,096
  5. Step 5: Solve for x
    x = 299,498,355,156,908,096/625,151,999.20
  6. Step 6: Final answer
    x = 479,080,856.40

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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.