Home / 21,135,400.65-31,693,108.41-8,187,615.69

Finding the Fourth Proportional to 21,135,400.65, 31,693,108.41 and 8,187,615.69

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Solution

The fourth proportional to 21,135,400.65, 31,693,108.41 and 8,187,615.69 is: 12,277,552.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135,400.65 : 31,693,108.41 = 8,187,615.69 : x
  2. Step 2: Convert to fraction form
    21,135,400.65/31,693,108.41 = 8,187,615.69/x
  3. Step 3: Cross multiply
    21,135,400.65x = 31,693,108.41 × 8,187,615.69
  4. Step 4: Simplify right side
    21,135,400.65x = 259,490,991,682,586.97
  5. Step 5: Solve for x
    x = 259,490,991,682,586.97/21,135,400.65
  6. Step 6: Final answer
    x = 12,277,552.53

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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.