Home / 7,491,729.69-11,237,600-1,811,959.47

Finding the Fourth Proportional to 7,491,729.69, 11,237,600 and 1,811,959.47

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Solution

The fourth proportional to 7,491,729.69, 11,237,600 and 1,811,959.47 is: 2,717,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491,729.69 : 11,237,600 = 1,811,959.47 : x
  2. Step 2: Convert to fraction form
    7,491,729.69/11,237,600 = 1,811,959.47/x
  3. Step 3: Cross multiply
    7,491,729.69x = 11,237,600 × 1,811,959.47
  4. Step 4: Simplify right side
    7,491,729.69x = 20,362,075,740,072
  5. Step 5: Solve for x
    x = 20,362,075,740,072/7,491,729.69
  6. Step 6: Final answer
    x = 2,717,940.53

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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.