Home / 20,947,492.68-28,907,191.27-11,654,965.32

Finding the Fourth Proportional to 20,947,492.68, 28,907,191.27 and 11,654,965.32

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Solution

The fourth proportional to 20,947,492.68, 28,907,191.27 and 11,654,965.32 is: 16,083,658.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,492.68 : 28,907,191.27 = 11,654,965.32 : x
  2. Step 2: Convert to fraction form
    20,947,492.68/28,907,191.27 = 11,654,965.32/x
  3. Step 3: Cross multiply
    20,947,492.68x = 28,907,191.27 × 11,654,965.32
  4. Step 4: Simplify right side
    20,947,492.68x = 336,912,311,750,456.75
  5. Step 5: Solve for x
    x = 336,912,311,750,456.75/20,947,492.68
  6. Step 6: Final answer
    x = 16,083,658.17

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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.