Home / 20,220,654.30-30,330,981.45-15,181,806.30

Finding the Fourth Proportional to 20,220,654.30, 30,330,981.45 and 15,181,806.30

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Solution

The fourth proportional to 20,220,654.30, 30,330,981.45 and 15,181,806.30 is: 22,772,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,654.30 : 30,330,981.45 = 15,181,806.30 : x
  2. Step 2: Convert to fraction form
    20,220,654.30/30,330,981.45 = 15,181,806.30/x
  3. Step 3: Cross multiply
    20,220,654.30x = 30,330,981.45 × 15,181,806.30
  4. Step 4: Simplify right side
    20,220,654.30x = 460,479,085,262,793.12
  5. Step 5: Solve for x
    x = 460,479,085,262,793.12/20,220,654.30
  6. Step 6: Final answer
    x = 22,772,709.45

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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.