Home / 8,693,992.80-13,040,989.20-7,287,314.40

Finding the Fourth Proportional to 8,693,992.80, 13,040,989.20 and 7,287,314.40

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Solution

The fourth proportional to 8,693,992.80, 13,040,989.20 and 7,287,314.40 is: 10,930,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693,992.80 : 13,040,989.20 = 7,287,314.40 : x
  2. Step 2: Convert to fraction form
    8,693,992.80/13,040,989.20 = 7,287,314.40/x
  3. Step 3: Cross multiply
    8,693,992.80x = 13,040,989.20 × 7,287,314.40
  4. Step 4: Simplify right side
    8,693,992.80x = 95,033,788,387,404.48
  5. Step 5: Solve for x
    x = 95,033,788,387,404.48/8,693,992.80
  6. Step 6: Final answer
    x = 10,930,971.60

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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.