Home / 645,130,669,212.25-890,280,410,656.60-356,098,983,144.97

Finding the Fourth Proportional to 645,130,669,212.25, 890,280,410,656.60 and 356,098,983,144.97

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Solution

The fourth proportional to 645,130,669,212.25, 890,280,410,656.60 and 356,098,983,144.97 is: 491,416,644,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,130,669,212.25 : 890,280,410,656.60 = 356,098,983,144.97 : x
  2. Step 2: Convert to fraction form
    645,130,669,212.25/890,280,410,656.60 = 356,098,983,144.97/x
  3. Step 3: Cross multiply
    645,130,669,212.25x = 890,280,410,656.60 × 356,098,983,144.97
  4. Step 4: Simplify right side
    645,130,669,212.25x = 317,027,948,948,701,522,690,048
  5. Step 5: Solve for x
    x = 317,027,948,948,701,522,690,048/645,130,669,212.25
  6. Step 6: Final answer
    x = 491,416,644,841.60

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