Home / 20,915,247.23-28,863,741.24-11,623,208.94

Finding the Fourth Proportional to 20,915,247.23, 28,863,741.24 and 11,623,208.94

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Solution

The fourth proportional to 20,915,247.23, 28,863,741.24 and 11,623,208.94 is: 16,040,417.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,247.23 : 28,863,741.24 = 11,623,208.94 : x
  2. Step 2: Convert to fraction form
    20,915,247.23/28,863,741.24 = 11,623,208.94/x
  3. Step 3: Cross multiply
    20,915,247.23x = 28,863,741.24 × 11,623,208.94
  4. Step 4: Simplify right side
    20,915,247.23x = 335,489,295,222,614.62
  5. Step 5: Solve for x
    x = 335,489,295,222,614.62/20,915,247.23
  6. Step 6: Final answer
    x = 16,040,417.38

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1.5x scale

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.