Home / 20,451,463.06-28,233,246.45-12,718,996.78

Finding the Fourth Proportional to 20,451,463.06, 28,233,246.45 and 12,718,996.78

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Solution

The fourth proportional to 20,451,463.06, 28,233,246.45 and 12,718,996.78 is: 17,558,576.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,463.06 : 28,233,246.45 = 12,718,996.78 : x
  2. Step 2: Convert to fraction form
    20,451,463.06/28,233,246.45 = 12,718,996.78/x
  3. Step 3: Cross multiply
    20,451,463.06x = 28,233,246.45 × 12,718,996.78
  4. Step 4: Simplify right side
    20,451,463.06x = 359,098,570,686,496.38
  5. Step 5: Solve for x
    x = 359,098,570,686,496.38/20,451,463.06
  6. Step 6: Final answer
    x = 17,558,576.11

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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.