Home / 225,390,378.80-311,023,023.92-124,917,832.32

Finding the Fourth Proportional to 225,390,378.80, 311,023,023.92 and 124,917,832.32

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Solution

The fourth proportional to 225,390,378.80, 311,023,023.92 and 124,917,832.32 is: 172,377,907.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,390,378.80 : 311,023,023.92 = 124,917,832.32 : x
  2. Step 2: Convert to fraction form
    225,390,378.80/311,023,023.92 = 124,917,832.32/x
  3. Step 3: Cross multiply
    225,390,378.80x = 311,023,023.92 × 124,917,832.32
  4. Step 4: Simplify right side
    225,390,378.80x = 38,852,321,949,697,912
  5. Step 5: Solve for x
    x = 38,852,321,949,697,912/225,390,378.80
  6. Step 6: Final answer
    x = 172,377,907.86

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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.