Home / 81,187,806.08-111,930,789.12-64,497,922.56

Finding the Fourth Proportional to 81,187,806.08, 111,930,789.12 and 64,497,922.56

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Solution

The fourth proportional to 81,187,806.08, 111,930,789.12 and 64,497,922.56 is: 88,921,030.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,187,806.08 : 111,930,789.12 = 64,497,922.56 : x
  2. Step 2: Convert to fraction form
    81,187,806.08/111,930,789.12 = 64,497,922.56/x
  3. Step 3: Cross multiply
    81,187,806.08x = 111,930,789.12 × 64,497,922.56
  4. Step 4: Simplify right side
    81,187,806.08x = 7,219,303,368,741,451
  5. Step 5: Solve for x
    x = 7,219,303,368,741,451/81,187,806.08
  6. Step 6: Final answer
    x = 88,921,030.35

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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.