Home / 20,498,078.70-28,269,015.19-17,007,881.65

Finding the Fourth Proportional to 20,498,078.70, 28,269,015.19 and 17,007,881.65

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Solution

The fourth proportional to 20,498,078.70, 28,269,015.19 and 17,007,881.65 is: 23,455,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498,078.70 : 28,269,015.19 = 17,007,881.65 : x
  2. Step 2: Convert to fraction form
    20,498,078.70/28,269,015.19 = 17,007,881.65/x
  3. Step 3: Cross multiply
    20,498,078.70x = 28,269,015.19 × 17,007,881.65
  4. Step 4: Simplify right side
    20,498,078.70x = 480,796,064,600,380.06
  5. Step 5: Solve for x
    x = 480,796,064,600,380.06/20,498,078.70
  6. Step 6: Final answer
    x = 23,455,664.88

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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.