Home / 821,282,270.22-1,232,078,778.45-330,033,781.26

Finding the Fourth Proportional to 821,282,270.22, 1,232,078,778.45 and 330,033,781.26

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Solution

The fourth proportional to 821,282,270.22, 1,232,078,778.45 and 330,033,781.26 is: 495,113,108.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,282,270.22 : 1,232,078,778.45 = 330,033,781.26 : x
  2. Step 2: Convert to fraction form
    821,282,270.22/1,232,078,778.45 = 330,033,781.26/x
  3. Step 3: Cross multiply
    821,282,270.22x = 1,232,078,778.45 × 330,033,781.26
  4. Step 4: Simplify right side
    821,282,270.22x = 406,627,618,062,055,296
  5. Step 5: Solve for x
    x = 406,627,618,062,055,296/821,282,270.22
  6. Step 6: Final answer
    x = 495,113,108.86

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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.