Home / 109,555,287.20-164,332,930.80-77,704,791.20

Finding the Fourth Proportional to 109,555,287.20, 164,332,930.80 and 77,704,791.20

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Solution

The fourth proportional to 109,555,287.20, 164,332,930.80 and 77,704,791.20 is: 116,557,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,555,287.20 : 164,332,930.80 = 77,704,791.20 : x
  2. Step 2: Convert to fraction form
    109,555,287.20/164,332,930.80 = 77,704,791.20/x
  3. Step 3: Cross multiply
    109,555,287.20x = 164,332,930.80 × 77,704,791.20
  4. Step 4: Simplify right side
    109,555,287.20x = 12,769,456,075,098,050
  5. Step 5: Solve for x
    x = 12,769,456,075,098,050/109,555,287.20
  6. Step 6: Final answer
    x = 116,557,186.80

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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.