Home / 18,486,073.78-27,731,633.90-7,700,851.84

Finding the Fourth Proportional to 18,486,073.78, 27,731,633.90 and 7,700,851.84

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Solution

The fourth proportional to 18,486,073.78, 27,731,633.90 and 7,700,851.84 is: 11,552,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486,073.78 : 27,731,633.90 = 7,700,851.84 : x
  2. Step 2: Convert to fraction form
    18,486,073.78/27,731,633.90 = 7,700,851.84/x
  3. Step 3: Cross multiply
    18,486,073.78x = 27,731,633.90 × 7,700,851.84
  4. Step 4: Simplify right side
    18,486,073.78x = 213,557,203,837,188.03
  5. Step 5: Solve for x
    x = 213,557,203,837,188.03/18,486,073.78
  6. Step 6: Final answer
    x = 11,552,328.87

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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.