Home / 15,658,998.75-21,609,374.09-8,690,728.41

Finding the Fourth Proportional to 15,658,998.75, 21,609,374.09 and 8,690,728.41

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Solution

The fourth proportional to 15,658,998.75, 21,609,374.09 and 8,690,728.41 is: 11,993,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,658,998.75 : 21,609,374.09 = 8,690,728.41 : x
  2. Step 2: Convert to fraction form
    15,658,998.75/21,609,374.09 = 8,690,728.41/x
  3. Step 3: Cross multiply
    15,658,998.75x = 21,609,374.09 × 8,690,728.41
  4. Step 4: Simplify right side
    15,658,998.75x = 187,801,201,282,827.28
  5. Step 5: Solve for x
    x = 187,801,201,282,827.28/15,658,998.75
  6. Step 6: Final answer
    x = 11,993,180.68

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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.