Home / 20,661,900.22-30,992,850.17-7,532,302.78

Finding the Fourth Proportional to 20,661,900.22, 30,992,850.17 and 7,532,302.78

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Solution

The fourth proportional to 20,661,900.22, 30,992,850.17 and 7,532,302.78 is: 11,298,454.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661,900.22 : 30,992,850.17 = 7,532,302.78 : x
  2. Step 2: Convert to fraction form
    20,661,900.22/30,992,850.17 = 7,532,302.78/x
  3. Step 3: Cross multiply
    20,661,900.22x = 30,992,850.17 × 7,532,302.78
  4. Step 4: Simplify right side
    20,661,900.22x = 233,447,531,495,614.50
  5. Step 5: Solve for x
    x = 233,447,531,495,614.50/20,661,900.22
  6. Step 6: Final answer
    x = 11,298,454.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.