Home / 28,244,845.80-42,367,268.70-21,859,680.60

Finding the Fourth Proportional to 28,244,845.80, 42,367,268.70 and 21,859,680.60

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Solution

The fourth proportional to 28,244,845.80, 42,367,268.70 and 21,859,680.60 is: 32,789,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244,845.80 : 42,367,268.70 = 21,859,680.60 : x
  2. Step 2: Convert to fraction form
    28,244,845.80/42,367,268.70 = 21,859,680.60/x
  3. Step 3: Cross multiply
    28,244,845.80x = 42,367,268.70 × 21,859,680.60
  4. Step 4: Simplify right side
    28,244,845.80x = 926,134,961,676,377.38
  5. Step 5: Solve for x
    x = 926,134,961,676,377.38/28,244,845.80
  6. Step 6: Final answer
    x = 32,789,520.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.