Home / 39,315,131.21-54,256,728.48-21,911,601.08

Finding the Fourth Proportional to 39,315,131.21, 54,256,728.48 and 21,911,601.08

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Solution

The fourth proportional to 39,315,131.21, 54,256,728.48 and 21,911,601.08 is: 30,239,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,315,131.21 : 54,256,728.48 = 21,911,601.08 : x
  2. Step 2: Convert to fraction form
    39,315,131.21/54,256,728.48 = 21,911,601.08/x
  3. Step 3: Cross multiply
    39,315,131.21x = 54,256,728.48 × 21,911,601.08
  4. Step 4: Simplify right side
    39,315,131.21x = 1,188,851,790,359,634.50
  5. Step 5: Solve for x
    x = 1,188,851,790,359,634.50/39,315,131.21
  6. Step 6: Final answer
    x = 30,239,039.11

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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.