Home / 81,079,149.12-111,887,843.12-43,909,127.52

Finding the Fourth Proportional to 81,079,149.12, 111,887,843.12 and 43,909,127.52

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Solution

The fourth proportional to 81,079,149.12, 111,887,843.12 and 43,909,127.52 is: 60,593,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,079,149.12 : 111,887,843.12 = 43,909,127.52 : x
  2. Step 2: Convert to fraction form
    81,079,149.12/111,887,843.12 = 43,909,127.52/x
  3. Step 3: Cross multiply
    81,079,149.12x = 111,887,843.12 × 43,909,127.52
  4. Step 4: Simplify right side
    81,079,149.12x = 4,912,897,571,493,835
  5. Step 5: Solve for x
    x = 4,912,897,571,493,835/81,079,149.12
  6. Step 6: Final answer
    x = 60,593,847.18

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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.