Home / 419,031,447.20-628,156,340.46-142,493,687.96

Finding the Fourth Proportional to 419,031,447.20, 628,156,340.46 and 142,493,687.96

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Solution

The fourth proportional to 419,031,447.20, 628,156,340.46 and 142,493,687.96 is: 213,607,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,031,447.20 : 628,156,340.46 = 142,493,687.96 : x
  2. Step 2: Convert to fraction form
    419,031,447.20/628,156,340.46 = 142,493,687.96/x
  3. Step 3: Cross multiply
    419,031,447.20x = 628,156,340.46 × 142,493,687.96
  4. Step 4: Simplify right side
    419,031,447.20x = 89,508,313,567,602,768
  5. Step 5: Solve for x
    x = 89,508,313,567,602,768/419,031,447.20
  6. Step 6: Final answer
    x = 213,607,628.18

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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.