Home / 20,316,081.19-28,034,811.82-11,149,314.43

Finding the Fourth Proportional to 20,316,081.19, 28,034,811.82 and 11,149,314.43

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Solution

The fourth proportional to 20,316,081.19, 28,034,811.82 and 11,149,314.43 is: 15,385,296.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316,081.19 : 28,034,811.82 = 11,149,314.43 : x
  2. Step 2: Convert to fraction form
    20,316,081.19/28,034,811.82 = 11,149,314.43/x
  3. Step 3: Cross multiply
    20,316,081.19x = 28,034,811.82 × 11,149,314.43
  4. Step 4: Simplify right side
    20,316,081.19x = 312,568,931,967,060.56
  5. Step 5: Solve for x
    x = 312,568,931,967,060.56/20,316,081.19
  6. Step 6: Final answer
    x = 15,385,296.46

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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.