Home / 85,708,900.82-128,597,414.16-27,425,556.56

Finding the Fourth Proportional to 85,708,900.82, 128,597,414.16 and 27,425,556.56

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Solution

The fourth proportional to 85,708,900.82, 128,597,414.16 and 27,425,556.56 is: 41,149,234.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,708,900.82 : 128,597,414.16 = 27,425,556.56 : x
  2. Step 2: Convert to fraction form
    85,708,900.82/128,597,414.16 = 27,425,556.56/x
  3. Step 3: Cross multiply
    85,708,900.82x = 128,597,414.16 × 27,425,556.56
  4. Step 4: Simplify right side
    85,708,900.82x = 3,526,855,655,514,824.50
  5. Step 5: Solve for x
    x = 3,526,855,655,514,824.50/85,708,900.82
  6. Step 6: Final answer
    x = 41,149,234.46

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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.