Home / 663,551,990.80-995,327,986.20-178,926,787.60

Finding the Fourth Proportional to 663,551,990.80, 995,327,986.20 and 178,926,787.60

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Solution

The fourth proportional to 663,551,990.80, 995,327,986.20 and 178,926,787.60 is: 268,390,181.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,551,990.80 : 995,327,986.20 = 178,926,787.60 : x
  2. Step 2: Convert to fraction form
    663,551,990.80/995,327,986.20 = 178,926,787.60/x
  3. Step 3: Cross multiply
    663,551,990.80x = 995,327,986.20 × 178,926,787.60
  4. Step 4: Simplify right side
    663,551,990.80x = 178,090,839,179,143,136
  5. Step 5: Solve for x
    x = 178,090,839,179,143,136/663,551,990.80
  6. Step 6: Final answer
    x = 268,390,181.40

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Double scale
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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.