Home / 12,648,936.91-18,980,961.90-11,619,841.93

Finding the Fourth Proportional to 12,648,936.91, 18,980,961.90 and 11,619,841.93

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Solution

The fourth proportional to 12,648,936.91, 18,980,961.90 and 11,619,841.93 is: 17,436,704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648,936.91 : 18,980,961.90 = 11,619,841.93 : x
  2. Step 2: Convert to fraction form
    12,648,936.91/18,980,961.90 = 11,619,841.93/x
  3. Step 3: Cross multiply
    12,648,936.91x = 18,980,961.90 × 11,619,841.93
  4. Step 4: Simplify right side
    12,648,936.91x = 220,555,776,957,352.44
  5. Step 5: Solve for x
    x = 220,555,776,957,352.44/12,648,936.91
  6. Step 6: Final answer
    x = 17,436,704.64

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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.