Home / 18,945,638.77-28,414,111.47-5,299,751.11

Finding the Fourth Proportional to 18,945,638.77, 28,414,111.47 and 5,299,751.11

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Solution

The fourth proportional to 18,945,638.77, 28,414,111.47 and 5,299,751.11 is: 7,948,410.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945,638.77 : 28,414,111.47 = 5,299,751.11 : x
  2. Step 2: Convert to fraction form
    18,945,638.77/28,414,111.47 = 5,299,751.11/x
  3. Step 3: Cross multiply
    18,945,638.77x = 28,414,111.47 × 5,299,751.11
  4. Step 4: Simplify right side
    18,945,638.77x = 150,587,718,802,796.25
  5. Step 5: Solve for x
    x = 150,587,718,802,796.25/18,945,638.77
  6. Step 6: Final answer
    x = 7,948,410.75

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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.