Home / 6,612,571.40-9,918,857.10-1,821,000.20

Finding the Fourth Proportional to 6,612,571.40, 9,918,857.10 and 1,821,000.20

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Solution

The fourth proportional to 6,612,571.40, 9,918,857.10 and 1,821,000.20 is: 2,731,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612,571.40 : 9,918,857.10 = 1,821,000.20 : x
  2. Step 2: Convert to fraction form
    6,612,571.40/9,918,857.10 = 1,821,000.20/x
  3. Step 3: Cross multiply
    6,612,571.40x = 9,918,857.10 × 1,821,000.20
  4. Step 4: Simplify right side
    6,612,571.40x = 18,062,240,762,871.42
  5. Step 5: Solve for x
    x = 18,062,240,762,871.42/6,612,571.40
  6. Step 6: Final answer
    x = 2,731,500.30

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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.