Home / 12,188,645.29-16,820,223.04-6,681,920.03

Finding the Fourth Proportional to 12,188,645.29, 16,820,223.04 and 6,681,920.03

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Solution

The fourth proportional to 12,188,645.29, 16,820,223.04 and 6,681,920.03 is: 9,220,990.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188,645.29 : 16,820,223.04 = 6,681,920.03 : x
  2. Step 2: Convert to fraction form
    12,188,645.29/16,820,223.04 = 6,681,920.03/x
  3. Step 3: Cross multiply
    12,188,645.29x = 16,820,223.04 × 6,681,920.03
  4. Step 4: Simplify right side
    12,188,645.29x = 112,391,385,240,043.48
  5. Step 5: Solve for x
    x = 112,391,385,240,043.48/12,188,645.29
  6. Step 6: Final answer
    x = 9,220,990.73

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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.