Home / 18,419,812.20-25,419,139.38-10,160,223.12

Finding the Fourth Proportional to 18,419,812.20, 25,419,139.38 and 10,160,223.12

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Solution

The fourth proportional to 18,419,812.20, 25,419,139.38 and 10,160,223.12 is: 14,020,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419,812.20 : 25,419,139.38 = 10,160,223.12 : x
  2. Step 2: Convert to fraction form
    18,419,812.20/25,419,139.38 = 10,160,223.12/x
  3. Step 3: Cross multiply
    18,419,812.20x = 25,419,139.38 × 10,160,223.12
  4. Step 4: Simplify right side
    18,419,812.20x = 258,264,127,619,178.44
  5. Step 5: Solve for x
    x = 258,264,127,619,178.44/18,419,812.20
  6. Step 6: Final answer
    x = 14,020,996.78

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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.