Home / 12,138,367.15-18,207,130.76-3,040,543.14

Finding the Fourth Proportional to 12,138,367.15, 18,207,130.76 and 3,040,543.14

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Solution

The fourth proportional to 12,138,367.15, 18,207,130.76 and 3,040,543.14 is: 4,560,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,367.15 : 18,207,130.76 = 3,040,543.14 : x
  2. Step 2: Convert to fraction form
    12,138,367.15/18,207,130.76 = 3,040,543.14/x
  3. Step 3: Cross multiply
    12,138,367.15x = 18,207,130.76 × 3,040,543.14
  4. Step 4: Simplify right side
    12,138,367.15x = 55,359,566,531,400.99
  5. Step 5: Solve for x
    x = 55,359,566,531,400.99/12,138,367.15
  6. Step 6: Final answer
    x = 4,560,709.51

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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.