Home / 20,731,579.43-28,609,384.34-11,439,233.51

Finding the Fourth Proportional to 20,731,579.43, 28,609,384.34 and 11,439,233.51

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Solution

The fourth proportional to 20,731,579.43, 28,609,384.34 and 11,439,233.51 is: 15,786,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731,579.43 : 28,609,384.34 = 11,439,233.51 : x
  2. Step 2: Convert to fraction form
    20,731,579.43/28,609,384.34 = 11,439,233.51/x
  3. Step 3: Cross multiply
    20,731,579.43x = 28,609,384.34 × 11,439,233.51
  4. Step 4: Simplify right side
    20,731,579.43x = 327,269,427,928,148.44
  5. Step 5: Solve for x
    x = 327,269,427,928,148.44/20,731,579.43
  6. Step 6: Final answer
    x = 15,786,034.49

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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.