Home / 20,741,569.68-28,623,366.72-11,449,141.68

Finding the Fourth Proportional to 20,741,569.68, 28,623,366.72 and 11,449,141.68

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Solution

The fourth proportional to 20,741,569.68, 28,623,366.72 and 11,449,141.68 is: 15,799,815.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741,569.68 : 28,623,366.72 = 11,449,141.68 : x
  2. Step 2: Convert to fraction form
    20,741,569.68/28,623,366.72 = 11,449,141.68/x
  3. Step 3: Cross multiply
    20,741,569.68x = 28,623,366.72 × 11,449,141.68
  4. Step 4: Simplify right side
    20,741,569.68x = 327,712,980,935,876.88
  5. Step 5: Solve for x
    x = 327,712,980,935,876.88/20,741,569.68
  6. Step 6: Final answer
    x = 15,799,815.83

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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.