Home / 352,015,013.20-528,526,404.60-198,960,005.20

Finding the Fourth Proportional to 352,015,013.20, 528,526,404.60 and 198,960,005.20

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Solution

The fourth proportional to 352,015,013.20, 528,526,404.60 and 198,960,005.20 is: 298,724,805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,015,013.20 : 528,526,404.60 = 198,960,005.20 : x
  2. Step 2: Convert to fraction form
    352,015,013.20/528,526,404.60 = 198,960,005.20/x
  3. Step 3: Cross multiply
    352,015,013.20x = 528,526,404.60 × 198,960,005.20
  4. Step 4: Simplify right side
    352,015,013.20x = 105,155,616,207,553,296
  5. Step 5: Solve for x
    x = 105,155,616,207,553,296/352,015,013.20
  6. Step 6: Final answer
    x = 298,724,805.09

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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.