Home / 12,420,899.19-18,633,371-3,668,063.11

Finding the Fourth Proportional to 12,420,899.19, 18,633,371 and 3,668,063.11

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Solution

The fourth proportional to 12,420,899.19, 18,633,371 and 3,668,063.11 is: 5,502,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420,899.19 : 18,633,371 = 3,668,063.11 : x
  2. Step 2: Convert to fraction form
    12,420,899.19/18,633,371 = 3,668,063.11/x
  3. Step 3: Cross multiply
    12,420,899.19x = 18,633,371 × 3,668,063.11
  4. Step 4: Simplify right side
    12,420,899.19x = 68,348,380,780,043.80
  5. Step 5: Solve for x
    x = 68,348,380,780,043.80/12,420,899.19
  6. Step 6: Final answer
    x = 5,502,691.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.