Home / 12,788,747.08-17,647,923.54-6,987,436.36

Finding the Fourth Proportional to 12,788,747.08, 17,647,923.54 and 6,987,436.36

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Solution

The fourth proportional to 12,788,747.08, 17,647,923.54 and 6,987,436.36 is: 9,642,363.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,747.08 : 17,647,923.54 = 6,987,436.36 : x
  2. Step 2: Convert to fraction form
    12,788,747.08/17,647,923.54 = 6,987,436.36/x
  3. Step 3: Cross multiply
    12,788,747.08x = 17,647,923.54 × 6,987,436.36
  4. Step 4: Simplify right side
    12,788,747.08x = 123,313,742,621,895.92
  5. Step 5: Solve for x
    x = 123,313,742,621,895.92/12,788,747.08
  6. Step 6: Final answer
    x = 9,642,363.08

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1.5x scale

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.