Home / 38,460,010.80-57,690,016.20-12,894,855.60

Finding the Fourth Proportional to 38,460,010.80, 57,690,016.20 and 12,894,855.60

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Solution

The fourth proportional to 38,460,010.80, 57,690,016.20 and 12,894,855.60 is: 19,342,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,460,010.80 : 57,690,016.20 = 12,894,855.60 : x
  2. Step 2: Convert to fraction form
    38,460,010.80/57,690,016.20 = 12,894,855.60/x
  3. Step 3: Cross multiply
    38,460,010.80x = 57,690,016.20 × 12,894,855.60
  4. Step 4: Simplify right side
    38,460,010.80x = 743,904,428,460,660.75
  5. Step 5: Solve for x
    x = 743,904,428,460,660.75/38,460,010.80
  6. Step 6: Final answer
    x = 19,342,283.40

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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.