Home / 18,145,338.30-27,218,007.45-12,397,319.10

Finding the Fourth Proportional to 18,145,338.30, 27,218,007.45 and 12,397,319.10

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Solution

The fourth proportional to 18,145,338.30, 27,218,007.45 and 12,397,319.10 is: 18,595,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,338.30 : 27,218,007.45 = 12,397,319.10 : x
  2. Step 2: Convert to fraction form
    18,145,338.30/27,218,007.45 = 12,397,319.10/x
  3. Step 3: Cross multiply
    18,145,338.30x = 27,218,007.45 × 12,397,319.10
  4. Step 4: Simplify right side
    18,145,338.30x = 337,430,323,623,827.25
  5. Step 5: Solve for x
    x = 337,430,323,623,827.25/18,145,338.30
  6. Step 6: Final answer
    x = 18,595,978.65

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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.