Home / 252,654,378.30-378,981,567.45-215,666,084.70

Finding the Fourth Proportional to 252,654,378.30, 378,981,567.45 and 215,666,084.70

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Solution

The fourth proportional to 252,654,378.30, 378,981,567.45 and 215,666,084.70 is: 323,499,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,654,378.30 : 378,981,567.45 = 215,666,084.70 : x
  2. Step 2: Convert to fraction form
    252,654,378.30/378,981,567.45 = 215,666,084.70/x
  3. Step 3: Cross multiply
    252,654,378.30x = 378,981,567.45 × 215,666,084.70
  4. Step 4: Simplify right side
    252,654,378.30x = 81,733,470,825,410,448
  5. Step 5: Solve for x
    x = 81,733,470,825,410,448/252,654,378.30
  6. Step 6: Final answer
    x = 323,499,127.05

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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.