Home / 645,531,203.52-890,832,185.28-352,175,771.52

Finding the Fourth Proportional to 645,531,203.52, 890,832,185.28 and 352,175,771.52

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Solution

The fourth proportional to 645,531,203.52, 890,832,185.28 and 352,175,771.52 is: 486,002,087.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,531,203.52 : 890,832,185.28 = 352,175,771.52 : x
  2. Step 2: Convert to fraction form
    645,531,203.52/890,832,185.28 = 352,175,771.52/x
  3. Step 3: Cross multiply
    645,531,203.52x = 890,832,185.28 × 352,175,771.52
  4. Step 4: Simplify right side
    645,531,203.52x = 313,729,512,145,831,552
  5. Step 5: Solve for x
    x = 313,729,512,145,831,552/645,531,203.52
  6. Step 6: Final answer
    x = 486,002,087.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.