Home / 72,166,930.57-99,591,104.27-39,127,243.60

Finding the Fourth Proportional to 72,166,930.57, 99,591,104.27 and 39,127,243.60

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Solution

The fourth proportional to 72,166,930.57, 99,591,104.27 and 39,127,243.60 is: 53,995,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,166,930.57 : 99,591,104.27 = 39,127,243.60 : x
  2. Step 2: Convert to fraction form
    72,166,930.57/99,591,104.27 = 39,127,243.60/x
  3. Step 3: Cross multiply
    72,166,930.57x = 99,591,104.27 × 39,127,243.60
  4. Step 4: Simplify right side
    72,166,930.57x = 3,896,725,397,165,290
  5. Step 5: Solve for x
    x = 3,896,725,397,165,290/72,166,930.57
  6. Step 6: Final answer
    x = 53,995,997.42

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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.