Home / 12,878,917.96-19,293,135.18-7,476,239.56

Finding the Fourth Proportional to 12,878,917.96, 19,293,135.18 and 7,476,239.56

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Solution

The fourth proportional to 12,878,917.96, 19,293,135.18 and 7,476,239.56 is: 11,199,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,917.96 : 19,293,135.18 = 7,476,239.56 : x
  2. Step 2: Convert to fraction form
    12,878,917.96/19,293,135.18 = 7,476,239.56/x
  3. Step 3: Cross multiply
    12,878,917.96x = 19,293,135.18 × 7,476,239.56
  4. Step 4: Simplify right side
    12,878,917.96x = 144,240,100,469,143.72
  5. Step 5: Solve for x
    x = 144,240,100,469,143.72/12,878,917.96
  6. Step 6: Final answer
    x = 11,199,706.44

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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.