Home / 403,546,480.80-605,319,721.20-399,720,105.60

Finding the Fourth Proportional to 403,546,480.80, 605,319,721.20 and 399,720,105.60

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Solution

The fourth proportional to 403,546,480.80, 605,319,721.20 and 399,720,105.60 is: 599,580,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,546,480.80 : 605,319,721.20 = 399,720,105.60 : x
  2. Step 2: Convert to fraction form
    403,546,480.80/605,319,721.20 = 399,720,105.60/x
  3. Step 3: Cross multiply
    403,546,480.80x = 605,319,721.20 × 399,720,105.60
  4. Step 4: Simplify right side
    403,546,480.80x = 241,958,462,879,826,592
  5. Step 5: Solve for x
    x = 241,958,462,879,826,592/403,546,480.80
  6. Step 6: Final answer
    x = 599,580,158.40

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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.