Home / 20,217,309.72-30,295,105.80-12,003,777.84

Finding the Fourth Proportional to 20,217,309.72, 30,295,105.80 and 12,003,777.84

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Solution

The fourth proportional to 20,217,309.72, 30,295,105.80 and 12,003,777.84 is: 17,987,344.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217,309.72 : 30,295,105.80 = 12,003,777.84 : x
  2. Step 2: Convert to fraction form
    20,217,309.72/30,295,105.80 = 12,003,777.84/x
  3. Step 3: Cross multiply
    20,217,309.72x = 30,295,105.80 × 12,003,777.84
  4. Step 4: Simplify right side
    20,217,309.72x = 363,655,719,662,495.50
  5. Step 5: Solve for x
    x = 363,655,719,662,495.50/20,217,309.72
  6. Step 6: Final answer
    x = 17,987,344.75

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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.