Home / 252,654,246.60-378,981,369.90-80,144,561.40

Finding the Fourth Proportional to 252,654,246.60, 378,981,369.90 and 80,144,561.40

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Solution

The fourth proportional to 252,654,246.60, 378,981,369.90 and 80,144,561.40 is: 120,216,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,654,246.60 : 378,981,369.90 = 80,144,561.40 : x
  2. Step 2: Convert to fraction form
    252,654,246.60/378,981,369.90 = 80,144,561.40/x
  3. Step 3: Cross multiply
    252,654,246.60x = 378,981,369.90 × 80,144,561.40
  4. Step 4: Simplify right side
    252,654,246.60x = 30,373,295,669,406,664
  5. Step 5: Solve for x
    x = 30,373,295,669,406,664/252,654,246.60
  6. Step 6: Final answer
    x = 120,216,842.10

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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.