Home / 106,508,961.20-159,763,441.80-87,361,338.80

Finding the Fourth Proportional to 106,508,961.20, 159,763,441.80 and 87,361,338.80

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Solution

The fourth proportional to 106,508,961.20, 159,763,441.80 and 87,361,338.80 is: 131,042,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,508,961.20 : 159,763,441.80 = 87,361,338.80 : x
  2. Step 2: Convert to fraction form
    106,508,961.20/159,763,441.80 = 87,361,338.80/x
  3. Step 3: Cross multiply
    106,508,961.20x = 159,763,441.80 × 87,361,338.80
  4. Step 4: Simplify right side
    106,508,961.20x = 13,957,148,166,943,882
  5. Step 5: Solve for x
    x = 13,957,148,166,943,882/106,508,961.20
  6. Step 6: Final answer
    x = 131,042,008.20

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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.