Home / 12,278,795.60-18,418,193.40-4,189,082.60

Finding the Fourth Proportional to 12,278,795.60, 18,418,193.40 and 4,189,082.60

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Solution

The fourth proportional to 12,278,795.60, 18,418,193.40 and 4,189,082.60 is: 6,283,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278,795.60 : 18,418,193.40 = 4,189,082.60 : x
  2. Step 2: Convert to fraction form
    12,278,795.60/18,418,193.40 = 4,189,082.60/x
  3. Step 3: Cross multiply
    12,278,795.60x = 18,418,193.40 × 4,189,082.60
  4. Step 4: Simplify right side
    12,278,795.60x = 77,155,333,495,374.83
  5. Step 5: Solve for x
    x = 77,155,333,495,374.83/12,278,795.60
  6. Step 6: Final answer
    x = 6,283,623.90

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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.