Home / 21,408,286.94-29,543,656.75-11,618,815.67

Finding the Fourth Proportional to 21,408,286.94, 29,543,656.75 and 11,618,815.67

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Solution

The fourth proportional to 21,408,286.94, 29,543,656.75 and 11,618,815.67 is: 16,034,085.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408,286.94 : 29,543,656.75 = 11,618,815.67 : x
  2. Step 2: Convert to fraction form
    21,408,286.94/29,543,656.75 = 11,618,815.67/x
  3. Step 3: Cross multiply
    21,408,286.94x = 29,543,656.75 × 11,618,815.67
  4. Step 4: Simplify right side
    21,408,286.94x = 343,262,301,995,380.50
  5. Step 5: Solve for x
    x = 343,262,301,995,380.50/21,408,286.94
  6. Step 6: Final answer
    x = 16,034,085.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.