Home / 5,318,954.36-7,978,431.18-1,329,866.36

Finding the Fourth Proportional to 5,318,954.36, 7,978,431.18 and 1,329,866.36

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Solution

The fourth proportional to 5,318,954.36, 7,978,431.18 and 1,329,866.36 is: 1,994,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,954.36 : 7,978,431.18 = 1,329,866.36 : x
  2. Step 2: Convert to fraction form
    5,318,954.36/7,978,431.18 = 1,329,866.36/x
  3. Step 3: Cross multiply
    5,318,954.36x = 7,978,431.18 × 1,329,866.36
  4. Step 4: Simplify right side
    5,318,954.36x = 10,610,247,231,857.11
  5. Step 5: Solve for x
    x = 10,610,247,231,857.11/5,318,954.36
  6. Step 6: Final answer
    x = 1,994,799.45

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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.