Home / 20,479,153.24-28,260,691.86-11,311,599.16

Finding the Fourth Proportional to 20,479,153.24, 28,260,691.86 and 11,311,599.16

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Solution

The fourth proportional to 20,479,153.24, 28,260,691.86 and 11,311,599.16 is: 15,609,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479,153.24 : 28,260,691.86 = 11,311,599.16 : x
  2. Step 2: Convert to fraction form
    20,479,153.24/28,260,691.86 = 11,311,599.16/x
  3. Step 3: Cross multiply
    20,479,153.24x = 28,260,691.86 × 11,311,599.16
  4. Step 4: Simplify right side
    20,479,153.24x = 319,673,618,304,594.81
  5. Step 5: Solve for x
    x = 319,673,618,304,594.81/20,479,153.24
  6. Step 6: Final answer
    x = 15,609,708.79

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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.