Home / 18,726,010.80-28,089,016.20-14,474,482.80

Finding the Fourth Proportional to 18,726,010.80, 28,089,016.20 and 14,474,482.80

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Solution

The fourth proportional to 18,726,010.80, 28,089,016.20 and 14,474,482.80 is: 21,711,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726,010.80 : 28,089,016.20 = 14,474,482.80 : x
  2. Step 2: Convert to fraction form
    18,726,010.80/28,089,016.20 = 14,474,482.80/x
  3. Step 3: Cross multiply
    18,726,010.80x = 28,089,016.20 × 14,474,482.80
  4. Step 4: Simplify right side
    18,726,010.80x = 406,573,981,855,821.38
  5. Step 5: Solve for x
    x = 406,573,981,855,821.38/18,726,010.80
  6. Step 6: Final answer
    x = 21,711,724.20

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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.