Home / 72,707,409.27-100,332,721.17-39,665,692.58

Finding the Fourth Proportional to 72,707,409.27, 100,332,721.17 and 39,665,692.58

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Solution

The fourth proportional to 72,707,409.27, 100,332,721.17 and 39,665,692.58 is: 54,736,744.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,707,409.27 : 100,332,721.17 = 39,665,692.58 : x
  2. Step 2: Convert to fraction form
    72,707,409.27/100,332,721.17 = 39,665,692.58/x
  3. Step 3: Cross multiply
    72,707,409.27x = 100,332,721.17 × 39,665,692.58
  4. Step 4: Simplify right side
    72,707,409.27x = 3,979,766,873,142,414.50
  5. Step 5: Solve for x
    x = 3,979,766,873,142,414.50/72,707,409.27
  6. Step 6: Final answer
    x = 54,736,744.34

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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.