Home / 28,544,102.88-39,390,881.89-15,491,361.53

Finding the Fourth Proportional to 28,544,102.88, 39,390,881.89 and 15,491,361.53

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Solution

The fourth proportional to 28,544,102.88, 39,390,881.89 and 15,491,361.53 is: 21,378,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544,102.88 : 39,390,881.89 = 15,491,361.53 : x
  2. Step 2: Convert to fraction form
    28,544,102.88/39,390,881.89 = 15,491,361.53/x
  3. Step 3: Cross multiply
    28,544,102.88x = 39,390,881.89 × 15,491,361.53
  4. Step 4: Simplify right side
    28,544,102.88x = 610,218,392,107,837
  5. Step 5: Solve for x
    x = 610,218,392,107,837/28,544,102.88
  6. Step 6: Final answer
    x = 21,378,089.71

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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.