Home / 81,942,411.66-122,921,890.77-26,607,932.96

Finding the Fourth Proportional to 81,942,411.66, 122,921,890.77 and 26,607,932.96

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Solution

The fourth proportional to 81,942,411.66, 122,921,890.77 and 26,607,932.96 is: 39,914,585.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,942,411.66 : 122,921,890.77 = 26,607,932.96 : x
  2. Step 2: Convert to fraction form
    81,942,411.66/122,921,890.77 = 26,607,932.96/x
  3. Step 3: Cross multiply
    81,942,411.66x = 122,921,890.77 × 26,607,932.96
  4. Step 4: Simplify right side
    81,942,411.66x = 3,270,697,428,309,993
  5. Step 5: Solve for x
    x = 3,270,697,428,309,993/81,942,411.66
  6. Step 6: Final answer
    x = 39,914,585.89

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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.