Home / 352,258,243.20-528,387,364.80-320,513,500.80

Finding the Fourth Proportional to 352,258,243.20, 528,387,364.80 and 320,513,500.80

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Solution

The fourth proportional to 352,258,243.20, 528,387,364.80 and 320,513,500.80 is: 480,770,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,258,243.20 : 528,387,364.80 = 320,513,500.80 : x
  2. Step 2: Convert to fraction form
    352,258,243.20/528,387,364.80 = 320,513,500.80/x
  3. Step 3: Cross multiply
    352,258,243.20x = 528,387,364.80 × 320,513,500.80
  4. Step 4: Simplify right side
    352,258,243.20x = 169,355,284,070,534,688
  5. Step 5: Solve for x
    x = 169,355,284,070,534,688/352,258,243.20
  6. Step 6: Final answer
    x = 480,770,251.20

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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.