Home / 13,686,441.86-18,887,770.21-7,491,493.64

Finding the Fourth Proportional to 13,686,441.86, 18,887,770.21 and 7,491,493.64

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Solution

The fourth proportional to 13,686,441.86, 18,887,770.21 and 7,491,493.64 is: 10,338,524.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686,441.86 : 18,887,770.21 = 7,491,493.64 : x
  2. Step 2: Convert to fraction form
    13,686,441.86/18,887,770.21 = 7,491,493.64/x
  3. Step 3: Cross multiply
    13,686,441.86x = 18,887,770.21 × 7,491,493.64
  4. Step 4: Simplify right side
    13,686,441.86x = 141,497,610,307,557.62
  5. Step 5: Solve for x
    x = 141,497,610,307,557.62/13,686,441.86
  6. Step 6: Final answer
    x = 10,338,524.19

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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.