Home / 8,304,400.10-12,456,600.15-7,800,515.30

Finding the Fourth Proportional to 8,304,400.10, 12,456,600.15 and 7,800,515.30

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Solution

The fourth proportional to 8,304,400.10, 12,456,600.15 and 7,800,515.30 is: 11,700,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,304,400.10 : 12,456,600.15 = 7,800,515.30 : x
  2. Step 2: Convert to fraction form
    8,304,400.10/12,456,600.15 = 7,800,515.30/x
  3. Step 3: Cross multiply
    8,304,400.10x = 12,456,600.15 × 7,800,515.30
  4. Step 4: Simplify right side
    8,304,400.10x = 97,167,900,056,057.30
  5. Step 5: Solve for x
    x = 97,167,900,056,057.30/8,304,400.10
  6. Step 6: Final answer
    x = 11,700,772.95

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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.