Home / 8,207,997.20-12,311,995.80-8,124,016.40

Finding the Fourth Proportional to 8,207,997.20, 12,311,995.80 and 8,124,016.40

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Solution

The fourth proportional to 8,207,997.20, 12,311,995.80 and 8,124,016.40 is: 12,186,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207,997.20 : 12,311,995.80 = 8,124,016.40 : x
  2. Step 2: Convert to fraction form
    8,207,997.20/12,311,995.80 = 8,124,016.40/x
  3. Step 3: Cross multiply
    8,207,997.20x = 12,311,995.80 × 8,124,016.40
  4. Step 4: Simplify right side
    8,207,997.20x = 100,022,855,795,931.12
  5. Step 5: Solve for x
    x = 100,022,855,795,931.12/8,207,997.20
  6. Step 6: Final answer
    x = 12,186,024.60

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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.