Home / 6,418,507.20-8,856,378.72-4,126,142.40

Finding the Fourth Proportional to 6,418,507.20, 8,856,378.72 and 4,126,142.40

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Solution

The fourth proportional to 6,418,507.20, 8,856,378.72 and 4,126,142.40 is: 5,693,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418,507.20 : 8,856,378.72 = 4,126,142.40 : x
  2. Step 2: Convert to fraction form
    6,418,507.20/8,856,378.72 = 4,126,142.40/x
  3. Step 3: Cross multiply
    6,418,507.20x = 8,856,378.72 × 4,126,142.40
  4. Step 4: Simplify right side
    6,418,507.20x = 36,542,679,747,049.73
  5. Step 5: Solve for x
    x = 36,542,679,747,049.73/6,418,507.20
  6. Step 6: Final answer
    x = 5,693,330.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.