Home / 128,259,897.87-176,993,917.19-69,521,301.85

Finding the Fourth Proportional to 128,259,897.87, 176,993,917.19 and 69,521,301.85

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Solution

The fourth proportional to 128,259,897.87, 176,993,917.19 and 69,521,301.85 is: 95,936,826.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,897.87 : 176,993,917.19 = 69,521,301.85 : x
  2. Step 2: Convert to fraction form
    128,259,897.87/176,993,917.19 = 69,521,301.85/x
  3. Step 3: Cross multiply
    128,259,897.87x = 176,993,917.19 × 69,521,301.85
  4. Step 4: Simplify right side
    128,259,897.87x = 12,304,847,542,579,892
  5. Step 5: Solve for x
    x = 12,304,847,542,579,892/128,259,897.87
  6. Step 6: Final answer
    x = 95,936,826.30

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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.