Home / 20,947,125.31-28,906,579.78-12,126,950.51

Finding the Fourth Proportional to 20,947,125.31, 28,906,579.78 and 12,126,950.51

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Solution

The fourth proportional to 20,947,125.31, 28,906,579.78 and 12,126,950.51 is: 16,734,929.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,125.31 : 28,906,579.78 = 12,126,950.51 : x
  2. Step 2: Convert to fraction form
    20,947,125.31/28,906,579.78 = 12,126,950.51/x
  3. Step 3: Cross multiply
    20,947,125.31x = 28,906,579.78 × 12,126,950.51
  4. Step 4: Simplify right side
    20,947,125.31x = 350,548,662,230,576.44
  5. Step 5: Solve for x
    x = 350,548,662,230,576.44/20,947,125.31
  6. Step 6: Final answer
    x = 16,734,929.36

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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.