Home / 8,007,680.10-12,011,520.15-6,661,362.90

Finding the Fourth Proportional to 8,007,680.10, 12,011,520.15 and 6,661,362.90

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Solution

The fourth proportional to 8,007,680.10, 12,011,520.15 and 6,661,362.90 is: 9,992,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007,680.10 : 12,011,520.15 = 6,661,362.90 : x
  2. Step 2: Convert to fraction form
    8,007,680.10/12,011,520.15 = 6,661,362.90/x
  3. Step 3: Cross multiply
    8,007,680.10x = 12,011,520.15 × 6,661,362.90
  4. Step 4: Simplify right side
    8,007,680.10x = 80,013,094,699,812.44
  5. Step 5: Solve for x
    x = 80,013,094,699,812.44/8,007,680.10
  6. Step 6: Final answer
    x = 9,992,044.35

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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.