Home / 20,421,881.42-28,182,195.92-11,254,524.17

Finding the Fourth Proportional to 20,421,881.42, 28,182,195.92 and 11,254,524.17

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Solution

The fourth proportional to 20,421,881.42, 28,182,195.92 and 11,254,524.17 is: 15,531,243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,881.42 : 28,182,195.92 = 11,254,524.17 : x
  2. Step 2: Convert to fraction form
    20,421,881.42/28,182,195.92 = 11,254,524.17/x
  3. Step 3: Cross multiply
    20,421,881.42x = 28,182,195.92 × 11,254,524.17
  4. Step 4: Simplify right side
    20,421,881.42x = 317,177,205,032,540.69
  5. Step 5: Solve for x
    x = 317,177,205,032,540.69/20,421,881.42
  6. Step 6: Final answer
    x = 15,531,243.11

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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.