Home / 20,442,728.20-30,664,092.30-12,884,456.20

Finding the Fourth Proportional to 20,442,728.20, 30,664,092.30 and 12,884,456.20

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Solution

The fourth proportional to 20,442,728.20, 30,664,092.30 and 12,884,456.20 is: 19,326,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442,728.20 : 30,664,092.30 = 12,884,456.20 : x
  2. Step 2: Convert to fraction form
    20,442,728.20/30,664,092.30 = 12,884,456.20/x
  3. Step 3: Cross multiply
    20,442,728.20x = 30,664,092.30 × 12,884,456.20
  4. Step 4: Simplify right side
    20,442,728.20x = 395,090,154,152,107.25
  5. Step 5: Solve for x
    x = 395,090,154,152,107.25/20,442,728.20
  6. Step 6: Final answer
    x = 19,326,684.30

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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.