Home / 5,250,666.70-7,876,000.05-3,990,954.70

Finding the Fourth Proportional to 5,250,666.70, 7,876,000.05 and 3,990,954.70

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Solution

The fourth proportional to 5,250,666.70, 7,876,000.05 and 3,990,954.70 is: 5,986,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250,666.70 : 7,876,000.05 = 3,990,954.70 : x
  2. Step 2: Convert to fraction form
    5,250,666.70/7,876,000.05 = 3,990,954.70/x
  3. Step 3: Cross multiply
    5,250,666.70x = 7,876,000.05 × 3,990,954.70
  4. Step 4: Simplify right side
    5,250,666.70x = 31,432,759,416,747.73
  5. Step 5: Solve for x
    x = 31,432,759,416,747.73/5,250,666.70
  6. Step 6: Final answer
    x = 5,986,432.05

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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.