Home / 13,676,556.08-20,481,958.13-7,823,000.78

Finding the Fourth Proportional to 13,676,556.08, 20,481,958.13 and 7,823,000.78

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Solution

The fourth proportional to 13,676,556.08, 20,481,958.13 and 7,823,000.78 is: 11,715,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676,556.08 : 20,481,958.13 = 7,823,000.78 : x
  2. Step 2: Convert to fraction form
    13,676,556.08/20,481,958.13 = 7,823,000.78/x
  3. Step 3: Cross multiply
    13,676,556.08x = 20,481,958.13 × 7,823,000.78
  4. Step 4: Simplify right side
    13,676,556.08x = 160,230,374,426,917.34
  5. Step 5: Solve for x
    x = 160,230,374,426,917.34/13,676,556.08
  6. Step 6: Final answer
    x = 11,715,696.08

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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.