Home / 10,191,863.40-15,287,795.10-8,278,675.80

Finding the Fourth Proportional to 10,191,863.40, 15,287,795.10 and 8,278,675.80

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Solution

The fourth proportional to 10,191,863.40, 15,287,795.10 and 8,278,675.80 is: 12,418,013.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191,863.40 : 15,287,795.10 = 8,278,675.80 : x
  2. Step 2: Convert to fraction form
    10,191,863.40/15,287,795.10 = 8,278,675.80/x
  3. Step 3: Cross multiply
    10,191,863.40x = 15,287,795.10 × 8,278,675.80
  4. Step 4: Simplify right side
    10,191,863.40x = 126,562,699,329,728.58
  5. Step 5: Solve for x
    x = 126,562,699,329,728.58/10,191,863.40
  6. Step 6: Final answer
    x = 12,418,013.70

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Double scale
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Similar ratio
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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.