Home / 846,895,078.80-1,269,760,001.40-431,568,032.40

Finding the Fourth Proportional to 846,895,078.80, 1,269,760,001.40 and 431,568,032.40

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Solution

The fourth proportional to 846,895,078.80, 1,269,760,001.40 and 431,568,032.40 is: 647,055,153.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,895,078.80 : 1,269,760,001.40 = 431,568,032.40 : x
  2. Step 2: Convert to fraction form
    846,895,078.80/1,269,760,001.40 = 431,568,032.40/x
  3. Step 3: Cross multiply
    846,895,078.80x = 1,269,760,001.40 × 431,568,032.40
  4. Step 4: Simplify right side
    846,895,078.80x = 547,987,825,424,419,264
  5. Step 5: Solve for x
    x = 547,987,825,424,419,264/846,895,078.80
  6. Step 6: Final answer
    x = 647,055,153.75

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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.