Home / 143,820,680.08-198,472,452.94-77,741,179.40

Finding the Fourth Proportional to 143,820,680.08, 198,472,452.94 and 77,741,179.40

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Solution

The fourth proportional to 143,820,680.08, 198,472,452.94 and 77,741,179.40 is: 107,282,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,820,680.08 : 198,472,452.94 = 77,741,179.40 : x
  2. Step 2: Convert to fraction form
    143,820,680.08/198,472,452.94 = 77,741,179.40/x
  3. Step 3: Cross multiply
    143,820,680.08x = 198,472,452.94 × 77,741,179.40
  4. Step 4: Simplify right side
    143,820,680.08x = 15,429,482,568,779,882
  5. Step 5: Solve for x
    x = 15,429,482,568,779,882/143,820,680.08
  6. Step 6: Final answer
    x = 107,282,781.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.