Home / 12,387,010.40-18,580,515.60-8,082,338.30

Finding the Fourth Proportional to 12,387,010.40, 18,580,515.60 and 8,082,338.30

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Solution

The fourth proportional to 12,387,010.40, 18,580,515.60 and 8,082,338.30 is: 12,123,507.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,010.40 : 18,580,515.60 = 8,082,338.30 : x
  2. Step 2: Convert to fraction form
    12,387,010.40/18,580,515.60 = 8,082,338.30/x
  3. Step 3: Cross multiply
    12,387,010.40x = 18,580,515.60 × 8,082,338.30
  4. Step 4: Simplify right side
    12,387,010.40x = 150,174,012,867,627.50
  5. Step 5: Solve for x
    x = 150,174,012,867,627.50/12,387,010.40
  6. Step 6: Final answer
    x = 12,123,507.45

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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.