Home / 15,538,367.32-21,447,082.48-9,178,793.61

Finding the Fourth Proportional to 15,538,367.32, 21,447,082.48 and 9,178,793.61

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Solution

The fourth proportional to 15,538,367.32, 21,447,082.48 and 9,178,793.61 is: 12,669,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538,367.32 : 21,447,082.48 = 9,178,793.61 : x
  2. Step 2: Convert to fraction form
    15,538,367.32/21,447,082.48 = 9,178,793.61/x
  3. Step 3: Cross multiply
    15,538,367.32x = 21,447,082.48 × 9,178,793.61
  4. Step 4: Simplify right side
    15,538,367.32x = 196,858,343,513,331.56
  5. Step 5: Solve for x
    x = 196,858,343,513,331.56/15,538,367.32
  6. Step 6: Final answer
    x = 12,669,178.14

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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.