Home / 20,722,712.40-31,028,081.40-16,243,736.40

Finding the Fourth Proportional to 20,722,712.40, 31,028,081.40 and 16,243,736.40

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Solution

The fourth proportional to 20,722,712.40, 31,028,081.40 and 16,243,736.40 is: 24,321,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722,712.40 : 31,028,081.40 = 16,243,736.40 : x
  2. Step 2: Convert to fraction form
    20,722,712.40/31,028,081.40 = 16,243,736.40/x
  3. Step 3: Cross multiply
    20,722,712.40x = 31,028,081.40 × 16,243,736.40
  4. Step 4: Simplify right side
    20,722,712.40x = 504,011,975,259,342.94
  5. Step 5: Solve for x
    x = 504,011,975,259,342.94/20,722,712.40
  6. Step 6: Final answer
    x = 24,321,718.39

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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.