Home / 20,386,093.46-28,132,812.83-11,218,736.21

Finding the Fourth Proportional to 20,386,093.46, 28,132,812.83 and 11,218,736.21

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Solution

The fourth proportional to 20,386,093.46, 28,132,812.83 and 11,218,736.21 is: 15,481,858.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,093.46 : 28,132,812.83 = 11,218,736.21 : x
  2. Step 2: Convert to fraction form
    20,386,093.46/28,132,812.83 = 11,218,736.21/x
  3. Step 3: Cross multiply
    20,386,093.46x = 28,132,812.83 × 11,218,736.21
  4. Step 4: Simplify right side
    20,386,093.46x = 315,614,605,788,315.81
  5. Step 5: Solve for x
    x = 315,614,605,788,315.81/20,386,093.46
  6. Step 6: Final answer
    x = 15,481,858.09

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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.