Home / 72,074,821.18-108,151,589.42-30,569,241.56

Finding the Fourth Proportional to 72,074,821.18, 108,151,589.42 and 30,569,241.56

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Solution

The fourth proportional to 72,074,821.18, 108,151,589.42 and 30,569,241.56 is: 45,870,555.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,074,821.18 : 108,151,589.42 = 30,569,241.56 : x
  2. Step 2: Convert to fraction form
    72,074,821.18/108,151,589.42 = 30,569,241.56/x
  3. Step 3: Cross multiply
    72,074,821.18x = 108,151,589.42 × 30,569,241.56
  4. Step 4: Simplify right side
    72,074,821.18x = 3,306,112,062,077,920
  5. Step 5: Solve for x
    x = 3,306,112,062,077,920/72,074,821.18
  6. Step 6: Final answer
    x = 45,870,555.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.