Home / 13,420,095.62-20,160,446.25-7,958,772.56

Finding the Fourth Proportional to 13,420,095.62, 20,160,446.25 and 7,958,772.56

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Solution

The fourth proportional to 13,420,095.62, 20,160,446.25 and 7,958,772.56 is: 11,956,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,095.62 : 20,160,446.25 = 7,958,772.56 : x
  2. Step 2: Convert to fraction form
    13,420,095.62/20,160,446.25 = 7,958,772.56/x
  3. Step 3: Cross multiply
    13,420,095.62x = 20,160,446.25 × 7,958,772.56
  4. Step 4: Simplify right side
    13,420,095.62x = 160,452,406,475,684.97
  5. Step 5: Solve for x
    x = 160,452,406,475,684.97/13,420,095.62
  6. Step 6: Final answer
    x = 11,956,129.90

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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.