Home / 400,148,584.32-552,193,186.32-221,540,432.88

Finding the Fourth Proportional to 400,148,584.32, 552,193,186.32 and 221,540,432.88

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Solution

The fourth proportional to 400,148,584.32, 552,193,186.32 and 221,540,432.88 is: 305,719,231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,148,584.32 : 552,193,186.32 = 221,540,432.88 : x
  2. Step 2: Convert to fraction form
    400,148,584.32/552,193,186.32 = 221,540,432.88/x
  3. Step 3: Cross multiply
    400,148,584.32x = 552,193,186.32 × 221,540,432.88
  4. Step 4: Simplify right side
    400,148,584.32x = 122,333,117,530,719,296
  5. Step 5: Solve for x
    x = 122,333,117,530,719,296/400,148,584.32
  6. Step 6: Final answer
    x = 305,719,231.12

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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.