Home / 20,764,020.60-31,146,030.90-12,253,966.20

Finding the Fourth Proportional to 20,764,020.60, 31,146,030.90 and 12,253,966.20

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Solution

The fourth proportional to 20,764,020.60, 31,146,030.90 and 12,253,966.20 is: 18,380,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,020.60 : 31,146,030.90 = 12,253,966.20 : x
  2. Step 2: Convert to fraction form
    20,764,020.60/31,146,030.90 = 12,253,966.20/x
  3. Step 3: Cross multiply
    20,764,020.60x = 31,146,030.90 × 12,253,966.20
  4. Step 4: Simplify right side
    20,764,020.60x = 381,662,409,912,755.56
  5. Step 5: Solve for x
    x = 381,662,409,912,755.56/20,764,020.60
  6. Step 6: Final answer
    x = 18,380,949.30

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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.