Home / 81,079,161.65-111,887,860.17-43,909,139.89

Finding the Fourth Proportional to 81,079,161.65, 111,887,860.17 and 43,909,139.89

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Solution

The fourth proportional to 81,079,161.65, 111,887,860.17 and 43,909,139.89 is: 60,593,864.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,079,161.65 : 111,887,860.17 = 43,909,139.89 : x
  2. Step 2: Convert to fraction form
    81,079,161.65/111,887,860.17 = 43,909,139.89/x
  3. Step 3: Cross multiply
    81,079,161.65x = 111,887,860.17 × 43,909,139.89
  4. Step 4: Simplify right side
    81,079,161.65x = 4,912,899,703,917,570
  5. Step 5: Solve for x
    x = 4,912,899,703,917,570/81,079,161.65
  6. Step 6: Final answer
    x = 60,593,864.12

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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.