Home / 12,519,315.14-18,780,245.76-4,320,890.36

Finding the Fourth Proportional to 12,519,315.14, 18,780,245.76 and 4,320,890.36

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Solution

The fourth proportional to 12,519,315.14, 18,780,245.76 and 4,320,890.36 is: 6,481,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519,315.14 : 18,780,245.76 = 4,320,890.36 : x
  2. Step 2: Convert to fraction form
    12,519,315.14/18,780,245.76 = 4,320,890.36/x
  3. Step 3: Cross multiply
    12,519,315.14x = 18,780,245.76 × 4,320,890.36
  4. Step 4: Simplify right side
    12,519,315.14x = 81,147,382,862,814.89
  5. Step 5: Solve for x
    x = 81,147,382,862,814.89/12,519,315.14
  6. Step 6: Final answer
    x = 6,481,774.92

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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.