Home / 20,760,503.13-28,643,741.46-11,939,473.53

Finding the Fourth Proportional to 20,760,503.13, 28,643,741.46 and 11,939,473.53

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Solution

The fourth proportional to 20,760,503.13, 28,643,741.46 and 11,939,473.53 is: 16,473,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,503.13 : 28,643,741.46 = 11,939,473.53 : x
  2. Step 2: Convert to fraction form
    20,760,503.13/28,643,741.46 = 11,939,473.53/x
  3. Step 3: Cross multiply
    20,760,503.13x = 28,643,741.46 × 11,939,473.53
  4. Step 4: Simplify right side
    20,760,503.13x = 341,991,192,961,833.56
  5. Step 5: Solve for x
    x = 341,991,192,961,833.56/20,760,503.13
  6. Step 6: Final answer
    x = 16,473,164.97

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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.