Home / 10,922,520.20-15,078,744.30-7,979,032.11

Finding the Fourth Proportional to 10,922,520.20, 15,078,744.30 and 7,979,032.11

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Solution

The fourth proportional to 10,922,520.20, 15,078,744.30 and 7,979,032.11 is: 11,015,203.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922,520.20 : 15,078,744.30 = 7,979,032.11 : x
  2. Step 2: Convert to fraction form
    10,922,520.20/15,078,744.30 = 7,979,032.11/x
  3. Step 3: Cross multiply
    10,922,520.20x = 15,078,744.30 × 7,979,032.11
  4. Step 4: Simplify right side
    10,922,520.20x = 120,313,784,948,179.48
  5. Step 5: Solve for x
    x = 120,313,784,948,179.48/10,922,520.20
  6. Step 6: Final answer
    x = 11,015,203.70

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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.