Home / 71,551,739.52-98,743,829.76-40,195,321.92

Finding the Fourth Proportional to 71,551,739.52, 98,743,829.76 and 40,195,321.92

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Solution

The fourth proportional to 71,551,739.52, 98,743,829.76 and 40,195,321.92 is: 55,470,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,551,739.52 : 98,743,829.76 = 40,195,321.92 : x
  2. Step 2: Convert to fraction form
    71,551,739.52/98,743,829.76 = 40,195,321.92/x
  3. Step 3: Cross multiply
    71,551,739.52x = 98,743,829.76 × 40,195,321.92
  4. Step 4: Simplify right side
    71,551,739.52x = 3,969,040,024,816,876.50
  5. Step 5: Solve for x
    x = 3,969,040,024,816,876.50/71,551,739.52
  6. Step 6: Final answer
    x = 55,470,908.90

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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.