Home / 20,407,869.29-28,162,858.25-11,240,512.04

Finding the Fourth Proportional to 20,407,869.29, 28,162,858.25 and 11,240,512.04

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Solution

The fourth proportional to 20,407,869.29, 28,162,858.25 and 11,240,512.04 is: 15,511,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407,869.29 : 28,162,858.25 = 11,240,512.04 : x
  2. Step 2: Convert to fraction form
    20,407,869.29/28,162,858.25 = 11,240,512.04/x
  3. Step 3: Cross multiply
    20,407,869.29x = 28,162,858.25 × 11,240,512.04
  4. Step 4: Simplify right side
    20,407,869.29x = 316,564,947,042,921.50
  5. Step 5: Solve for x
    x = 316,564,947,042,921.50/20,407,869.29
  6. Step 6: Final answer
    x = 15,511,905.85

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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.