Home / 12,872,469-19,308,404.34-6,481,005.24

Finding the Fourth Proportional to 12,872,469, 19,308,404.34 and 6,481,005.24

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Solution

The fourth proportional to 12,872,469, 19,308,404.34 and 6,481,005.24 is: 9,721,357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,469 : 19,308,404.34 = 6,481,005.24 : x
  2. Step 2: Convert to fraction form
    12,872,469/19,308,404.34 = 6,481,005.24/x
  3. Step 3: Cross multiply
    12,872,469x = 19,308,404.34 × 6,481,005.24
  4. Step 4: Simplify right side
    12,872,469x = 125,137,869,703,578.75
  5. Step 5: Solve for x
    x = 125,137,869,703,578.75/12,872,469
  6. Step 6: Final answer
    x = 9,721,357.24

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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.