Home / 20,157,467.50-27,819,666.74-11,456,947.95

Finding the Fourth Proportional to 20,157,467.50, 27,819,666.74 and 11,456,947.95

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Solution

The fourth proportional to 20,157,467.50, 27,819,666.74 and 11,456,947.95 is: 15,811,930.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,467.50 : 27,819,666.74 = 11,456,947.95 : x
  2. Step 2: Convert to fraction form
    20,157,467.50/27,819,666.74 = 11,456,947.95/x
  3. Step 3: Cross multiply
    20,157,467.50x = 27,819,666.74 × 11,456,947.95
  4. Step 4: Simplify right side
    20,157,467.50x = 318,728,473,826,526.12
  5. Step 5: Solve for x
    x = 318,728,473,826,526.12/20,157,467.50
  6. Step 6: Final answer
    x = 15,811,930.43

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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.