Home / 19,486,809.20-29,217,772.20-8,131,775.60

Finding the Fourth Proportional to 19,486,809.20, 29,217,772.20 and 8,131,775.60

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Solution

The fourth proportional to 19,486,809.20, 29,217,772.20 and 8,131,775.60 is: 12,192,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486,809.20 : 29,217,772.20 = 8,131,775.60 : x
  2. Step 2: Convert to fraction form
    19,486,809.20/29,217,772.20 = 8,131,775.60/x
  3. Step 3: Cross multiply
    19,486,809.20x = 29,217,772.20 × 8,131,775.60
  4. Step 4: Simplify right side
    19,486,809.20x = 237,592,367,062,318.31
  5. Step 5: Solve for x
    x = 237,592,367,062,318.31/19,486,809.20
  6. Step 6: Final answer
    x = 12,192,471.56

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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.