Home / 18,722,350.80-28,083,526.20-8,644,654.80

Finding the Fourth Proportional to 18,722,350.80, 28,083,526.20 and 8,644,654.80

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Solution

The fourth proportional to 18,722,350.80, 28,083,526.20 and 8,644,654.80 is: 12,966,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,350.80 : 28,083,526.20 = 8,644,654.80 : x
  2. Step 2: Convert to fraction form
    18,722,350.80/28,083,526.20 = 8,644,654.80/x
  3. Step 3: Cross multiply
    18,722,350.80x = 28,083,526.20 × 8,644,654.80
  4. Step 4: Simplify right side
    18,722,350.80x = 242,772,389,565,755.78
  5. Step 5: Solve for x
    x = 242,772,389,565,755.78/18,722,350.80
  6. Step 6: Final answer
    x = 12,966,982.20

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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.