Home / 198,101,998.40-297,152,997.60-61,787,163.20

Finding the Fourth Proportional to 198,101,998.40, 297,152,997.60 and 61,787,163.20

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Solution

The fourth proportional to 198,101,998.40, 297,152,997.60 and 61,787,163.20 is: 92,680,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,101,998.40 : 297,152,997.60 = 61,787,163.20 : x
  2. Step 2: Convert to fraction form
    198,101,998.40/297,152,997.60 = 61,787,163.20/x
  3. Step 3: Cross multiply
    198,101,998.40x = 297,152,997.60 × 61,787,163.20
  4. Step 4: Simplify right side
    198,101,998.40x = 18,360,240,758,080,412
  5. Step 5: Solve for x
    x = 18,360,240,758,080,412/198,101,998.40
  6. Step 6: Final answer
    x = 92,680,744.80

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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.