Home / 252,654,382.80-378,981,574.20-215,666,089.20

Finding the Fourth Proportional to 252,654,382.80, 378,981,574.20 and 215,666,089.20

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Solution

The fourth proportional to 252,654,382.80, 378,981,574.20 and 215,666,089.20 is: 323,499,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,654,382.80 : 378,981,574.20 = 215,666,089.20 : x
  2. Step 2: Convert to fraction form
    252,654,382.80/378,981,574.20 = 215,666,089.20/x
  3. Step 3: Cross multiply
    252,654,382.80x = 378,981,574.20 × 215,666,089.20
  4. Step 4: Simplify right side
    252,654,382.80x = 81,733,473,986,573,616
  5. Step 5: Solve for x
    x = 81,733,473,986,573,616/252,654,382.80
  6. Step 6: Final answer
    x = 323,499,133.80

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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.