Home / 21,694,647.86-29,939,065.44-11,904,520.49

Finding the Fourth Proportional to 21,694,647.86, 29,939,065.44 and 11,904,520.49

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Solution

The fourth proportional to 21,694,647.86, 29,939,065.44 and 11,904,520.49 is: 16,428,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694,647.86 : 29,939,065.44 = 11,904,520.49 : x
  2. Step 2: Convert to fraction form
    21,694,647.86/29,939,065.44 = 11,904,520.49/x
  3. Step 3: Cross multiply
    21,694,647.86x = 29,939,065.44 × 11,904,520.49
  4. Step 4: Simplify right side
    21,694,647.86x = 356,410,217,966,828
  5. Step 5: Solve for x
    x = 356,410,217,966,828/21,694,647.86
  6. Step 6: Final answer
    x = 16,428,485.97

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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.