Home / 8,266,295.70-12,399,443.55-4,221,439.20

Finding the Fourth Proportional to 8,266,295.70, 12,399,443.55 and 4,221,439.20

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Solution

The fourth proportional to 8,266,295.70, 12,399,443.55 and 4,221,439.20 is: 6,332,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266,295.70 : 12,399,443.55 = 4,221,439.20 : x
  2. Step 2: Convert to fraction form
    8,266,295.70/12,399,443.55 = 4,221,439.20/x
  3. Step 3: Cross multiply
    8,266,295.70x = 12,399,443.55 × 4,221,439.20
  4. Step 4: Simplify right side
    8,266,295.70x = 52,343,497,060,157.16
  5. Step 5: Solve for x
    x = 52,343,497,060,157.16/8,266,295.70
  6. Step 6: Final answer
    x = 6,332,158.80

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Similar ratio
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1.5x scale

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.