Home / 352,265,305.60-528,397,958.40-147,940,019.20

Finding the Fourth Proportional to 352,265,305.60, 528,397,958.40 and 147,940,019.20

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Solution

The fourth proportional to 352,265,305.60, 528,397,958.40 and 147,940,019.20 is: 221,910,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,265,305.60 : 528,397,958.40 = 147,940,019.20 : x
  2. Step 2: Convert to fraction form
    352,265,305.60/528,397,958.40 = 147,940,019.20/x
  3. Step 3: Cross multiply
    352,265,305.60x = 528,397,958.40 × 147,940,019.20
  4. Step 4: Simplify right side
    352,265,305.60x = 78,171,204,110,936,784
  5. Step 5: Solve for x
    x = 78,171,204,110,936,784/352,265,305.60
  6. Step 6: Final answer
    x = 221,910,028.80

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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.