Home / 15,180,971.30-20,949,976.62-8,305,568.18

Finding the Fourth Proportional to 15,180,971.30, 20,949,976.62 and 8,305,568.18

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Solution

The fourth proportional to 15,180,971.30, 20,949,976.62 and 8,305,568.18 is: 11,461,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180,971.30 : 20,949,976.62 = 8,305,568.18 : x
  2. Step 2: Convert to fraction form
    15,180,971.30/20,949,976.62 = 8,305,568.18/x
  3. Step 3: Cross multiply
    15,180,971.30x = 20,949,976.62 × 8,305,568.18
  4. Step 4: Simplify right side
    15,180,971.30x = 174,001,459,186,815.97
  5. Step 5: Solve for x
    x = 174,001,459,186,815.97/15,180,971.30
  6. Step 6: Final answer
    x = 11,461,813.33

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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.