Home / 412,687,243.40-619,748,310.45-218,976,998.90

Finding the Fourth Proportional to 412,687,243.40, 619,748,310.45 and 218,976,998.90

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Solution

The fourth proportional to 412,687,243.40, 619,748,310.45 and 218,976,998.90 is: 328,846,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,687,243.40 : 619,748,310.45 = 218,976,998.90 : x
  2. Step 2: Convert to fraction form
    412,687,243.40/619,748,310.45 = 218,976,998.90/x
  3. Step 3: Cross multiply
    412,687,243.40x = 619,748,310.45 × 218,976,998.90
  4. Step 4: Simplify right side
    412,687,243.40x = 135,710,625,095,686,528
  5. Step 5: Solve for x
    x = 135,710,625,095,686,528/412,687,243.40
  6. Step 6: Final answer
    x = 328,846,183.80

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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.