Home / 488,335,961.70-732,503,942.55-422,578,995.30

Finding the Fourth Proportional to 488,335,961.70, 732,503,942.55 and 422,578,995.30

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Solution

The fourth proportional to 488,335,961.70, 732,503,942.55 and 422,578,995.30 is: 633,868,492.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,335,961.70 : 732,503,942.55 = 422,578,995.30 : x
  2. Step 2: Convert to fraction form
    488,335,961.70/732,503,942.55 = 422,578,995.30/x
  3. Step 3: Cross multiply
    488,335,961.70x = 732,503,942.55 × 422,578,995.30
  4. Step 4: Simplify right side
    488,335,961.70x = 309,540,780,096,067,904
  5. Step 5: Solve for x
    x = 309,540,780,096,067,904/488,335,961.70
  6. Step 6: Final answer
    x = 633,868,492.95

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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.