Home / 12,188,975.04-16,820,421-6,682,161.36

Finding the Fourth Proportional to 12,188,975.04, 16,820,421 and 6,682,161.36

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Solution

The fourth proportional to 12,188,975.04, 16,820,421 and 6,682,161.36 is: 9,221,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188,975.04 : 16,820,421 = 6,682,161.36 : x
  2. Step 2: Convert to fraction form
    12,188,975.04/16,820,421 = 6,682,161.36/x
  3. Step 3: Cross multiply
    12,188,975.04x = 16,820,421 × 6,682,161.36
  4. Step 4: Simplify right side
    12,188,975.04x = 112,396,767,265,132.56
  5. Step 5: Solve for x
    x = 112,396,767,265,132.56/12,188,975.04
  6. Step 6: Final answer
    x = 9,221,182.82

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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.