Home / 201,204,013.20-301,806,019.80-71,815,844.40

Finding the Fourth Proportional to 201,204,013.20, 301,806,019.80 and 71,815,844.40

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Solution

The fourth proportional to 201,204,013.20, 301,806,019.80 and 71,815,844.40 is: 107,723,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,204,013.20 : 301,806,019.80 = 71,815,844.40 : x
  2. Step 2: Convert to fraction form
    201,204,013.20/301,806,019.80 = 71,815,844.40/x
  3. Step 3: Cross multiply
    201,204,013.20x = 301,806,019.80 × 71,815,844.40
  4. Step 4: Simplify right side
    201,204,013.20x = 21,674,454,156,940,120
  5. Step 5: Solve for x
    x = 21,674,454,156,940,120/201,204,013.20
  6. Step 6: Final answer
    x = 107,723,766.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.