Home / 12,229,615.83-18,343,944.90-4,142,591.43

Finding the Fourth Proportional to 12,229,615.83, 18,343,944.90 and 4,142,591.43

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Solution

The fourth proportional to 12,229,615.83, 18,343,944.90 and 4,142,591.43 is: 6,213,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229,615.83 : 18,343,944.90 = 4,142,591.43 : x
  2. Step 2: Convert to fraction form
    12,229,615.83/18,343,944.90 = 4,142,591.43/x
  3. Step 3: Cross multiply
    12,229,615.83x = 18,343,944.90 × 4,142,591.43
  4. Step 4: Simplify right side
    12,229,615.83x = 75,991,468,935,132.20
  5. Step 5: Solve for x
    x = 75,991,468,935,132.20/12,229,615.83
  6. Step 6: Final answer
    x = 6,213,724.94

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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.