Home / 19,440,010.80-29,160,016.20-13,015,479.60

Finding the Fourth Proportional to 19,440,010.80, 29,160,016.20 and 13,015,479.60

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Solution

The fourth proportional to 19,440,010.80, 29,160,016.20 and 13,015,479.60 is: 19,523,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440,010.80 : 29,160,016.20 = 13,015,479.60 : x
  2. Step 2: Convert to fraction form
    19,440,010.80/29,160,016.20 = 13,015,479.60/x
  3. Step 3: Cross multiply
    19,440,010.80x = 29,160,016.20 × 13,015,479.60
  4. Step 4: Simplify right side
    19,440,010.80x = 379,531,595,986,769.50
  5. Step 5: Solve for x
    x = 379,531,595,986,769.50/19,440,010.80
  6. Step 6: Final answer
    x = 19,523,219.40

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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.