Home / 8,656,262.80-12,984,394.20-8,287,680.40

Finding the Fourth Proportional to 8,656,262.80, 12,984,394.20 and 8,287,680.40

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Solution

The fourth proportional to 8,656,262.80, 12,984,394.20 and 8,287,680.40 is: 12,431,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656,262.80 : 12,984,394.20 = 8,287,680.40 : x
  2. Step 2: Convert to fraction form
    8,656,262.80/12,984,394.20 = 8,287,680.40/x
  3. Step 3: Cross multiply
    8,656,262.80x = 12,984,394.20 × 8,287,680.40
  4. Step 4: Simplify right side
    8,656,262.80x = 107,610,509,317,213.67
  5. Step 5: Solve for x
    x = 107,610,509,317,213.67/8,656,262.80
  6. Step 6: Final answer
    x = 12,431,520.60

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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.