Home / 21,538,132.75-32,307,480.53-7,161,200.56

Finding the Fourth Proportional to 21,538,132.75, 32,307,480.53 and 7,161,200.56

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Solution

The fourth proportional to 21,538,132.75, 32,307,480.53 and 7,161,200.56 is: 10,741,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538,132.75 : 32,307,480.53 = 7,161,200.56 : x
  2. Step 2: Convert to fraction form
    21,538,132.75/32,307,480.53 = 7,161,200.56/x
  3. Step 3: Cross multiply
    21,538,132.75x = 32,307,480.53 × 7,161,200.56
  4. Step 4: Simplify right side
    21,538,132.75x = 231,360,347,663,625.09
  5. Step 5: Solve for x
    x = 231,360,347,663,625.09/21,538,132.75
  6. Step 6: Final answer
    x = 10,741,894.40

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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.