Home / 900,383,402.11-1,350,643,218.14-278,661,516.34

Finding the Fourth Proportional to 900,383,402.11, 1,350,643,218.14 and 278,661,516.34

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Solution

The fourth proportional to 900,383,402.11, 1,350,643,218.14 and 278,661,516.34 is: 418,013,355.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,383,402.11 : 1,350,643,218.14 = 278,661,516.34 : x
  2. Step 2: Convert to fraction form
    900,383,402.11/1,350,643,218.14 = 278,661,516.34/x
  3. Step 3: Cross multiply
    900,383,402.11x = 1,350,643,218.14 × 278,661,516.34
  4. Step 4: Simplify right side
    900,383,402.11x = 376,372,287,201,229,760
  5. Step 5: Solve for x
    x = 376,372,287,201,229,760/900,383,402.11
  6. Step 6: Final answer
    x = 418,013,355.55

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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.