Home / 12,504,676.05-18,778,479.50-7,675,340.91

Finding the Fourth Proportional to 12,504,676.05, 18,778,479.50 and 7,675,340.91

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Solution

The fourth proportional to 12,504,676.05, 18,778,479.50 and 7,675,340.91 is: 11,526,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504,676.05 : 18,778,479.50 = 7,675,340.91 : x
  2. Step 2: Convert to fraction form
    12,504,676.05/18,778,479.50 = 7,675,340.91/x
  3. Step 3: Cross multiply
    12,504,676.05x = 18,778,479.50 × 7,675,340.91
  4. Step 4: Simplify right side
    12,504,676.05x = 144,131,231,895,569.66
  5. Step 5: Solve for x
    x = 144,131,231,895,569.66/12,504,676.05
  6. Step 6: Final answer
    x = 11,526,186.79

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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.