Home / 8,266,296.70-12,399,445.05-4,221,440.20

Finding the Fourth Proportional to 8,266,296.70, 12,399,445.05 and 4,221,440.20

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Solution

The fourth proportional to 8,266,296.70, 12,399,445.05 and 4,221,440.20 is: 6,332,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266,296.70 : 12,399,445.05 = 4,221,440.20 : x
  2. Step 2: Convert to fraction form
    8,266,296.70/12,399,445.05 = 4,221,440.20/x
  3. Step 3: Cross multiply
    8,266,296.70x = 12,399,445.05 × 4,221,440.20
  4. Step 4: Simplify right side
    8,266,296.70x = 52,343,515,791,761.02
  5. Step 5: Solve for x
    x = 52,343,515,791,761.02/8,266,296.70
  6. Step 6: Final answer
    x = 6,332,160.30

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Double scale
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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.