Home / 12,188,644.29-16,820,221.66-6,681,919.03

Finding the Fourth Proportional to 12,188,644.29, 16,820,221.66 and 6,681,919.03

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Solution

The fourth proportional to 12,188,644.29, 16,820,221.66 and 6,681,919.03 is: 9,220,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188,644.29 : 16,820,221.66 = 6,681,919.03 : x
  2. Step 2: Convert to fraction form
    12,188,644.29/16,820,221.66 = 6,681,919.03/x
  3. Step 3: Cross multiply
    12,188,644.29x = 16,820,221.66 × 6,681,919.03
  4. Step 4: Simplify right side
    12,188,644.29x = 112,391,359,140,016.83
  5. Step 5: Solve for x
    x = 112,391,359,140,016.83/12,188,644.29
  6. Step 6: Final answer
    x = 9,220,989.35

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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.