Home / 306,311,505.72-422,865,972.54-236,540,257.08

Finding the Fourth Proportional to 306,311,505.72, 422,865,972.54 and 236,540,257.08

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Solution

The fourth proportional to 306,311,505.72, 422,865,972.54 and 236,540,257.08 is: 326,546,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,311,505.72 : 422,865,972.54 = 236,540,257.08 : x
  2. Step 2: Convert to fraction form
    306,311,505.72/422,865,972.54 = 236,540,257.08/x
  3. Step 3: Cross multiply
    306,311,505.72x = 422,865,972.54 × 236,540,257.08
  4. Step 4: Simplify right side
    306,311,505.72x = 100,024,825,854,995,824
  5. Step 5: Solve for x
    x = 100,024,825,854,995,824/306,311,505.72
  6. Step 6: Final answer
    x = 326,546,094.38

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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.