Home / 45,491,138.20-68,236,707.30-28,272,449.80

Finding the Fourth Proportional to 45,491,138.20, 68,236,707.30 and 28,272,449.80

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Solution

The fourth proportional to 45,491,138.20, 68,236,707.30 and 28,272,449.80 is: 42,408,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,491,138.20 : 68,236,707.30 = 28,272,449.80 : x
  2. Step 2: Convert to fraction form
    45,491,138.20/68,236,707.30 = 28,272,449.80/x
  3. Step 3: Cross multiply
    45,491,138.20x = 68,236,707.30 × 28,272,449.80
  4. Step 4: Simplify right side
    45,491,138.20x = 1,929,218,881,656,543.50
  5. Step 5: Solve for x
    x = 1,929,218,881,656,543.50/45,491,138.20
  6. Step 6: Final answer
    x = 42,408,674.70

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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.