Home / 12,789,132.24-17,648,477-6,988,113.36

Finding the Fourth Proportional to 12,789,132.24, 17,648,477 and 6,988,113.36

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Solution

The fourth proportional to 12,789,132.24, 17,648,477 and 6,988,113.36 is: 9,643,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789,132.24 : 17,648,477 = 6,988,113.36 : x
  2. Step 2: Convert to fraction form
    12,789,132.24/17,648,477 = 6,988,113.36/x
  3. Step 3: Cross multiply
    12,789,132.24x = 17,648,477 × 6,988,113.36
  4. Step 4: Simplify right side
    12,789,132.24x = 123,329,557,907,352.72
  5. Step 5: Solve for x
    x = 123,329,557,907,352.72/12,789,132.24
  6. Step 6: Final answer
    x = 9,643,309.30

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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.