Home / 20,715,500.56-28,589,093.32-11,424,888.16

Finding the Fourth Proportional to 20,715,500.56, 28,589,093.32 and 11,424,888.16

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Solution

The fourth proportional to 20,715,500.56, 28,589,093.32 and 11,424,888.16 is: 15,767,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715,500.56 : 28,589,093.32 = 11,424,888.16 : x
  2. Step 2: Convert to fraction form
    20,715,500.56/28,589,093.32 = 11,424,888.16/x
  3. Step 3: Cross multiply
    20,715,500.56x = 28,589,093.32 × 11,424,888.16
  4. Step 4: Simplify right side
    20,715,500.56x = 326,627,193,776,803.12
  5. Step 5: Solve for x
    x = 326,627,193,776,803.12/20,715,500.56
  6. Step 6: Final answer
    x = 15,767,284.64

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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.