Home / 15,942,943.43-21,993,684.47-9,412,197.84

Finding the Fourth Proportional to 15,942,943.43, 21,993,684.47 and 9,412,197.84

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Solution

The fourth proportional to 15,942,943.43, 21,993,684.47 and 9,412,197.84 is: 12,984,359.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942,943.43 : 21,993,684.47 = 9,412,197.84 : x
  2. Step 2: Convert to fraction form
    15,942,943.43/21,993,684.47 = 9,412,197.84/x
  3. Step 3: Cross multiply
    15,942,943.43x = 21,993,684.47 × 9,412,197.84
  4. Step 4: Simplify right side
    15,942,943.43x = 207,008,909,450,410.28
  5. Step 5: Solve for x
    x = 207,008,909,450,410.28/15,942,943.43
  6. Step 6: Final answer
    x = 12,984,359.53

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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.