Home / 51,129,871.20-76,738,352.40-20,859,458.40

Finding the Fourth Proportional to 51,129,871.20, 76,738,352.40 and 20,859,458.40

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Solution

The fourth proportional to 51,129,871.20, 76,738,352.40 and 20,859,458.40 is: 31,306,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,129,871.20 : 76,738,352.40 = 20,859,458.40 : x
  2. Step 2: Convert to fraction form
    51,129,871.20/76,738,352.40 = 20,859,458.40/x
  3. Step 3: Cross multiply
    51,129,871.20x = 76,738,352.40 × 20,859,458.40
  4. Step 4: Simplify right side
    51,129,871.20x = 1,600,720,469,572,340.25
  5. Step 5: Solve for x
    x = 1,600,720,469,572,340.25/51,129,871.20
  6. Step 6: Final answer
    x = 31,306,952.90

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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.