Home / 223,928,960.40-309,023,399.84-124,815,992.38

Finding the Fourth Proportional to 223,928,960.40, 309,023,399.84 and 124,815,992.38

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Solution

The fourth proportional to 223,928,960.40, 309,023,399.84 and 124,815,992.38 is: 172,246,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,928,960.40 : 309,023,399.84 = 124,815,992.38 : x
  2. Step 2: Convert to fraction form
    223,928,960.40/309,023,399.84 = 124,815,992.38/x
  3. Step 3: Cross multiply
    223,928,960.40x = 309,023,399.84 × 124,815,992.38
  4. Step 4: Simplify right side
    223,928,960.40x = 38,571,062,318,274,488
  5. Step 5: Solve for x
    x = 38,571,062,318,274,488/223,928,960.40
  6. Step 6: Final answer
    x = 172,246,869.05

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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.