Home / 2,543,570,061.80-3,815,537,324.06-678,205,986.21

Finding the Fourth Proportional to 2,543,570,061.80, 3,815,537,324.06 and 678,205,986.21

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Solution

The fourth proportional to 2,543,570,061.80, 3,815,537,324.06 and 678,205,986.21 is: 1,017,357,568.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543,570,061.80 : 3,815,537,324.06 = 678,205,986.21 : x
  2. Step 2: Convert to fraction form
    2,543,570,061.80/3,815,537,324.06 = 678,205,986.21/x
  3. Step 3: Cross multiply
    2,543,570,061.80x = 3,815,537,324.06 × 678,205,986.21
  4. Step 4: Simplify right side
    2,543,570,061.80x = 2,587,720,253,786,872,320
  5. Step 5: Solve for x
    x = 2,587,720,253,786,872,320/2,543,570,061.80
  6. Step 6: Final answer
    x = 1,017,357,568.66

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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.