Home / 252,654,173.10-378,981,259.65-80,144,487.90

Finding the Fourth Proportional to 252,654,173.10, 378,981,259.65 and 80,144,487.90

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Solution

The fourth proportional to 252,654,173.10, 378,981,259.65 and 80,144,487.90 is: 120,216,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,654,173.10 : 378,981,259.65 = 80,144,487.90 : x
  2. Step 2: Convert to fraction form
    252,654,173.10/378,981,259.65 = 80,144,487.90/x
  3. Step 3: Cross multiply
    252,654,173.10x = 378,981,259.65 × 80,144,487.90
  4. Step 4: Simplify right side
    252,654,173.10x = 30,373,258,978,346,184
  5. Step 5: Solve for x
    x = 30,373,258,978,346,184/252,654,173.10
  6. Step 6: Final answer
    x = 120,216,731.85

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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.