Home / 12,915,501.54-19,373,278.96-12,126,311.65

Finding the Fourth Proportional to 12,915,501.54, 19,373,278.96 and 12,126,311.65

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Solution

The fourth proportional to 12,915,501.54, 19,373,278.96 and 12,126,311.65 is: 18,189,492.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915,501.54 : 19,373,278.96 = 12,126,311.65 : x
  2. Step 2: Convert to fraction form
    12,915,501.54/19,373,278.96 = 12,126,311.65/x
  3. Step 3: Cross multiply
    12,915,501.54x = 19,373,278.96 × 12,126,311.65
  4. Step 4: Simplify right side
    12,915,501.54x = 234,926,418,290,716.31
  5. Step 5: Solve for x
    x = 234,926,418,290,716.31/12,915,501.54
  6. Step 6: Final answer
    x = 18,189,492.50

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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.