Home / 20,274,926.84-27,979,167.34-10,982,321.72

Finding the Fourth Proportional to 20,274,926.84, 27,979,167.34 and 10,982,321.72

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Solution

The fourth proportional to 20,274,926.84, 27,979,167.34 and 10,982,321.72 is: 15,155,478.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274,926.84 : 27,979,167.34 = 10,982,321.72 : x
  2. Step 2: Convert to fraction form
    20,274,926.84/27,979,167.34 = 10,982,321.72/x
  3. Step 3: Cross multiply
    20,274,926.84x = 27,979,167.34 × 10,982,321.72
  4. Step 4: Simplify right side
    20,274,926.84x = 307,276,217,185,596.62
  5. Step 5: Solve for x
    x = 307,276,217,185,596.62/20,274,926.84
  6. Step 6: Final answer
    x = 15,155,478.47

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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.