Home / 3,987,921.15-5,503,303.20-2,177,085.15

Finding the Fourth Proportional to 3,987,921.15, 5,503,303.20 and 2,177,085.15

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Solution

The fourth proportional to 3,987,921.15, 5,503,303.20 and 2,177,085.15 is: 3,004,362.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,921.15 : 5,503,303.20 = 2,177,085.15 : x
  2. Step 2: Convert to fraction form
    3,987,921.15/5,503,303.20 = 2,177,085.15/x
  3. Step 3: Cross multiply
    3,987,921.15x = 5,503,303.20 × 2,177,085.15
  4. Step 4: Simplify right side
    3,987,921.15x = 11,981,159,672,667.48
  5. Step 5: Solve for x
    x = 11,981,159,672,667.48/3,987,921.15
  6. Step 6: Final answer
    x = 3,004,362.23

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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.