Home / 18,420,841.09-25,420,938.04-10,161,251.55

Finding the Fourth Proportional to 18,420,841.09, 25,420,938.04 and 10,161,251.55

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Solution

The fourth proportional to 18,420,841.09, 25,420,938.04 and 10,161,251.55 is: 14,022,624.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420,841.09 : 25,420,938.04 = 10,161,251.55 : x
  2. Step 2: Convert to fraction form
    18,420,841.09/25,420,938.04 = 10,161,251.55/x
  3. Step 3: Cross multiply
    18,420,841.09x = 25,420,938.04 × 10,161,251.55
  4. Step 4: Simplify right side
    18,420,841.09x = 258,308,546,074,105.56
  5. Step 5: Solve for x
    x = 258,308,546,074,105.56/18,420,841.09
  6. Step 6: Final answer
    x = 14,022,624.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.