Home / 10,647,545.80-15,971,318.70-6,385,520.20

Finding the Fourth Proportional to 10,647,545.80, 15,971,318.70 and 6,385,520.20

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Solution

The fourth proportional to 10,647,545.80, 15,971,318.70 and 6,385,520.20 is: 9,578,280.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647,545.80 : 15,971,318.70 = 6,385,520.20 : x
  2. Step 2: Convert to fraction form
    10,647,545.80/15,971,318.70 = 6,385,520.20/x
  3. Step 3: Cross multiply
    10,647,545.80x = 15,971,318.70 × 6,385,520.20
  4. Step 4: Simplify right side
    10,647,545.80x = 101,985,178,179,487.73
  5. Step 5: Solve for x
    x = 101,985,178,179,487.73/10,647,545.80
  6. Step 6: Final answer
    x = 9,578,280.30

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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.