Home / 645,619,120,343.39-890,949,091,257.31-352,644,230,006.01

Finding the Fourth Proportional to 645,619,120,343.39, 890,949,091,257.31 and 352,644,230,006.01

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Solution

The fourth proportional to 645,619,120,343.39, 890,949,091,257.31 and 352,644,230,006.01 is: 486,646,145,321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,619,120,343.39 : 890,949,091,257.31 = 352,644,230,006.01 : x
  2. Step 2: Convert to fraction form
    645,619,120,343.39/890,949,091,257.31 = 352,644,230,006.01/x
  3. Step 3: Cross multiply
    645,619,120,343.39x = 890,949,091,257.31 × 352,644,230,006.01
  4. Step 4: Simplify right side
    645,619,120,343.39x = 314,188,056,260,988,433,858,560
  5. Step 5: Solve for x
    x = 314,188,056,260,988,433,858,560/645,619,120,343.39
  6. Step 6: Final answer
    x = 486,646,145,321.53

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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.