Home / 18,715,843.20-28,052,769.60-10,632,691.20

Finding the Fourth Proportional to 18,715,843.20, 28,052,769.60 and 10,632,691.20

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Solution

The fourth proportional to 18,715,843.20, 28,052,769.60 and 10,632,691.20 is: 15,937,109.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,843.20 : 28,052,769.60 = 10,632,691.20 : x
  2. Step 2: Convert to fraction form
    18,715,843.20/28,052,769.60 = 10,632,691.20/x
  3. Step 3: Cross multiply
    18,715,843.20x = 28,052,769.60 × 10,632,691.20
  4. Step 4: Simplify right side
    18,715,843.20x = 298,276,436,461,547.50
  5. Step 5: Solve for x
    x = 298,276,436,461,547.50/18,715,843.20
  6. Step 6: Final answer
    x = 15,937,109.18

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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.