Home / 15,942,943.25-21,993,684.21-9,412,197.66

Finding the Fourth Proportional to 15,942,943.25, 21,993,684.21 and 9,412,197.66

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Solution

The fourth proportional to 15,942,943.25, 21,993,684.21 and 9,412,197.66 is: 12,984,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942,943.25 : 21,993,684.21 = 9,412,197.66 : x
  2. Step 2: Convert to fraction form
    15,942,943.25/21,993,684.21 = 9,412,197.66/x
  3. Step 3: Cross multiply
    15,942,943.25x = 21,993,684.21 × 9,412,197.66
  4. Step 4: Simplify right side
    15,942,943.25x = 207,008,903,056,140.97
  5. Step 5: Solve for x
    x = 207,008,903,056,140.97/15,942,943.25
  6. Step 6: Final answer
    x = 12,984,359.28

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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.