Home / 21,407,756.63-29,542,719.33-11,618,198.48

Finding the Fourth Proportional to 21,407,756.63, 29,542,719.33 and 11,618,198.48

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Solution

The fourth proportional to 21,407,756.63, 29,542,719.33 and 11,618,198.48 is: 16,033,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407,756.63 : 29,542,719.33 = 11,618,198.48 : x
  2. Step 2: Convert to fraction form
    21,407,756.63/29,542,719.33 = 11,618,198.48/x
  3. Step 3: Cross multiply
    21,407,756.63x = 29,542,719.33 × 11,618,198.48
  4. Step 4: Simplify right side
    21,407,756.63x = 343,233,176,888,729.38
  5. Step 5: Solve for x
    x = 343,233,176,888,729.38/21,407,756.63
  6. Step 6: Final answer
    x = 16,033,122.15

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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.