Home / 20,215,285.97-30,314,297.60-11,701,499.09

Finding the Fourth Proportional to 20,215,285.97, 30,314,297.60 and 11,701,499.09

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Solution

The fourth proportional to 20,215,285.97, 30,314,297.60 and 11,701,499.09 is: 17,547,252.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,285.97 : 30,314,297.60 = 11,701,499.09 : x
  2. Step 2: Convert to fraction form
    20,215,285.97/30,314,297.60 = 11,701,499.09/x
  3. Step 3: Cross multiply
    20,215,285.97x = 30,314,297.60 × 11,701,499.09
  4. Step 4: Simplify right side
    20,215,285.97x = 354,722,725,721,881.69
  5. Step 5: Solve for x
    x = 354,722,725,721,881.69/20,215,285.97
  6. Step 6: Final answer
    x = 17,547,252.42

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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.