Home / 51,204,304.86-76,806,535.20-20,912,167.86

Finding the Fourth Proportional to 51,204,304.86, 76,806,535.20 and 20,912,167.86

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Solution

The fourth proportional to 51,204,304.86, 76,806,535.20 and 20,912,167.86 is: 31,368,283.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,204,304.86 : 76,806,535.20 = 20,912,167.86 : x
  2. Step 2: Convert to fraction form
    51,204,304.86/76,806,535.20 = 20,912,167.86/x
  3. Step 3: Cross multiply
    51,204,304.86x = 76,806,535.20 × 20,912,167.86
  4. Step 4: Simplify right side
    51,204,304.86x = 1,606,191,156,847,398.75
  5. Step 5: Solve for x
    x = 1,606,191,156,847,398.75/51,204,304.86
  6. Step 6: Final answer
    x = 31,368,283.61

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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.