Home / 645,159,914,096.26-890,317,577,249.90-356,125,645,228.72

Finding the Fourth Proportional to 645,159,914,096.26, 890,317,577,249.90 and 356,125,645,228.72

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Solution

The fourth proportional to 645,159,914,096.26, 890,317,577,249.90 and 356,125,645,228.72 is: 491,451,676,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,159,914,096.26 : 890,317,577,249.90 = 356,125,645,228.72 : x
  2. Step 2: Convert to fraction form
    645,159,914,096.26/890,317,577,249.90 = 356,125,645,228.72/x
  3. Step 3: Cross multiply
    645,159,914,096.26x = 890,317,577,249.90 × 356,125,645,228.72
  4. Step 4: Simplify right side
    645,159,914,096.26x = 317,064,921,656,591,392,964,608
  5. Step 5: Solve for x
    x = 317,064,921,656,591,392,964,608/645,159,914,096.26
  6. Step 6: Final answer
    x = 491,451,676,908.25

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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.