Home / 143,659,962.55-198,250,744.80-77,580,455.43

Finding the Fourth Proportional to 143,659,962.55, 198,250,744.80 and 77,580,455.43

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Solution

The fourth proportional to 143,659,962.55, 198,250,744.80 and 77,580,455.43 is: 107,061,026.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,659,962.55 : 198,250,744.80 = 77,580,455.43 : x
  2. Step 2: Convert to fraction form
    143,659,962.55/198,250,744.80 = 77,580,455.43/x
  3. Step 3: Cross multiply
    143,659,962.55x = 198,250,744.80 × 77,580,455.43
  4. Step 4: Simplify right side
    143,659,962.55x = 15,380,383,070,920,706
  5. Step 5: Solve for x
    x = 15,380,383,070,920,706/143,659,962.55
  6. Step 6: Final answer
    x = 107,061,026.59

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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.