Home / 8,065,480.80-12,098,221.20-7,318,984.80

Finding the Fourth Proportional to 8,065,480.80, 12,098,221.20 and 7,318,984.80

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Solution

The fourth proportional to 8,065,480.80, 12,098,221.20 and 7,318,984.80 is: 10,978,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065,480.80 : 12,098,221.20 = 7,318,984.80 : x
  2. Step 2: Convert to fraction form
    8,065,480.80/12,098,221.20 = 7,318,984.80/x
  3. Step 3: Cross multiply
    8,065,480.80x = 12,098,221.20 × 7,318,984.80
  4. Step 4: Simplify right side
    8,065,480.80x = 88,546,697,069,837.75
  5. Step 5: Solve for x
    x = 88,546,697,069,837.75/8,065,480.80
  6. Step 6: Final answer
    x = 10,978,477.20

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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.