Home / 6,799,220.40-10,198,830.60-6,400,311.60

Finding the Fourth Proportional to 6,799,220.40, 10,198,830.60 and 6,400,311.60

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Solution

The fourth proportional to 6,799,220.40, 10,198,830.60 and 6,400,311.60 is: 9,600,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,799,220.40 : 10,198,830.60 = 6,400,311.60 : x
  2. Step 2: Convert to fraction form
    6,799,220.40/10,198,830.60 = 6,400,311.60/x
  3. Step 3: Cross multiply
    6,799,220.40x = 10,198,830.60 × 6,400,311.60
  4. Step 4: Simplify right side
    6,799,220.40x = 65,275,693,795,614.95
  5. Step 5: Solve for x
    x = 65,275,693,795,614.95/6,799,220.40
  6. Step 6: Final answer
    x = 9,600,467.40

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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.