Home / 20,275,138.76-27,979,825.85-10,982,708.84

Finding the Fourth Proportional to 20,275,138.76, 27,979,825.85 and 10,982,708.84

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Solution

The fourth proportional to 20,275,138.76, 27,979,825.85 and 10,982,708.84 is: 15,156,210.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275,138.76 : 27,979,825.85 = 10,982,708.84 : x
  2. Step 2: Convert to fraction form
    20,275,138.76/27,979,825.85 = 10,982,708.84/x
  3. Step 3: Cross multiply
    20,275,138.76x = 27,979,825.85 × 10,982,708.84
  4. Step 4: Simplify right side
    20,275,138.76x = 307,294,280,509,642.88
  5. Step 5: Solve for x
    x = 307,294,280,509,642.88/20,275,138.76
  6. Step 6: Final answer
    x = 15,156,210.97

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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.