Home / 221,146,612.40-331,719,918.60-178,099,891.40

Finding the Fourth Proportional to 221,146,612.40, 331,719,918.60 and 178,099,891.40

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Solution

The fourth proportional to 221,146,612.40, 331,719,918.60 and 178,099,891.40 is: 267,149,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,146,612.40 : 331,719,918.60 = 178,099,891.40 : x
  2. Step 2: Convert to fraction form
    221,146,612.40/331,719,918.60 = 178,099,891.40/x
  3. Step 3: Cross multiply
    221,146,612.40x = 331,719,918.60 × 178,099,891.40
  4. Step 4: Simplify right side
    221,146,612.40x = 59,079,281,477,876,848
  5. Step 5: Solve for x
    x = 59,079,281,477,876,848/221,146,612.40
  6. Step 6: Final answer
    x = 267,149,837.10

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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.