Home / 20,947,949.95-28,907,717.04-12,127,772.88

Finding the Fourth Proportional to 20,947,949.95, 28,907,717.04 and 12,127,772.88

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Solution

The fourth proportional to 20,947,949.95, 28,907,717.04 and 12,127,772.88 is: 16,736,063.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,949.95 : 28,907,717.04 = 12,127,772.88 : x
  2. Step 2: Convert to fraction form
    20,947,949.95/28,907,717.04 = 12,127,772.88/x
  3. Step 3: Cross multiply
    20,947,949.95x = 28,907,717.04 × 12,127,772.88
  4. Step 4: Simplify right side
    20,947,949.95x = 350,586,226,595,887.25
  5. Step 5: Solve for x
    x = 350,586,226,595,887.25/20,947,949.95
  6. Step 6: Final answer
    x = 16,736,063.79

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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.