Home / 20,248,440.20-27,942,829.28-11,429,748.12

Finding the Fourth Proportional to 20,248,440.20, 27,942,829.28 and 11,429,748.12

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Solution

The fourth proportional to 20,248,440.20, 27,942,829.28 and 11,429,748.12 is: 15,773,042.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248,440.20 : 27,942,829.28 = 11,429,748.12 : x
  2. Step 2: Convert to fraction form
    20,248,440.20/27,942,829.28 = 11,429,748.12/x
  3. Step 3: Cross multiply
    20,248,440.20x = 27,942,829.28 × 11,429,748.12
  4. Step 4: Simplify right side
    20,248,440.20x = 319,379,500,430,560.94
  5. Step 5: Solve for x
    x = 319,379,500,430,560.94/20,248,440.20
  6. Step 6: Final answer
    x = 15,773,042.13

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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.