Home / 13,731,809.20-20,597,713.80-7,685,191.60

Finding the Fourth Proportional to 13,731,809.20, 20,597,713.80 and 7,685,191.60

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Solution

The fourth proportional to 13,731,809.20, 20,597,713.80 and 7,685,191.60 is: 11,527,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731,809.20 : 20,597,713.80 = 7,685,191.60 : x
  2. Step 2: Convert to fraction form
    13,731,809.20/20,597,713.80 = 7,685,191.60/x
  3. Step 3: Cross multiply
    13,731,809.20x = 20,597,713.80 × 7,685,191.60
  4. Step 4: Simplify right side
    13,731,809.20x = 158,297,377,074,964.06
  5. Step 5: Solve for x
    x = 158,297,377,074,964.06/13,731,809.20
  6. Step 6: Final answer
    x = 11,527,787.40

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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.