Home / 6,521,021.40-9,781,532.10-3,998,098.20

Finding the Fourth Proportional to 6,521,021.40, 9,781,532.10 and 3,998,098.20

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Solution

The fourth proportional to 6,521,021.40, 9,781,532.10 and 3,998,098.20 is: 5,997,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521,021.40 : 9,781,532.10 = 3,998,098.20 : x
  2. Step 2: Convert to fraction form
    6,521,021.40/9,781,532.10 = 3,998,098.20/x
  3. Step 3: Cross multiply
    6,521,021.40x = 9,781,532.10 × 3,998,098.20
  4. Step 4: Simplify right side
    6,521,021.40x = 39,107,525,882,252.22
  5. Step 5: Solve for x
    x = 39,107,525,882,252.22/6,521,021.40
  6. Step 6: Final answer
    x = 5,997,147.30

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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.