Home / 13,125,920.64-18,113,771.16-7,245,556.38

Finding the Fourth Proportional to 13,125,920.64, 18,113,771.16 and 7,245,556.38

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Solution

The fourth proportional to 13,125,920.64, 18,113,771.16 and 7,245,556.38 is: 9,998,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125,920.64 : 18,113,771.16 = 7,245,556.38 : x
  2. Step 2: Convert to fraction form
    13,125,920.64/18,113,771.16 = 7,245,556.38/x
  3. Step 3: Cross multiply
    13,125,920.64x = 18,113,771.16 × 7,245,556.38
  4. Step 4: Simplify right side
    13,125,920.64x = 131,244,350,194,198
  5. Step 5: Solve for x
    x = 131,244,350,194,198/13,125,920.64
  6. Step 6: Final answer
    x = 9,998,868.18

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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.