Home / 12,931,940.25-19,397,910.42-5,259,759.30

Finding the Fourth Proportional to 12,931,940.25, 19,397,910.42 and 5,259,759.30

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Solution

The fourth proportional to 12,931,940.25, 19,397,910.42 and 5,259,759.30 is: 7,889,638.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931,940.25 : 19,397,910.42 = 5,259,759.30 : x
  2. Step 2: Convert to fraction form
    12,931,940.25/19,397,910.42 = 5,259,759.30/x
  3. Step 3: Cross multiply
    12,931,940.25x = 19,397,910.42 × 5,259,759.30
  4. Step 4: Simplify right side
    12,931,940.25x = 102,028,339,732,161.91
  5. Step 5: Solve for x
    x = 102,028,339,732,161.91/12,931,940.25
  6. Step 6: Final answer
    x = 7,889,638.97

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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.