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Finding the Fourth Proportional to 503,874,650.54, 695,645,294.22 and 447,965,645.98

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Solution

The fourth proportional to 503,874,650.54, 695,645,294.22 and 447,965,645.98 is: 618,457,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,874,650.54 : 695,645,294.22 = 447,965,645.98 : x
  2. Step 2: Convert to fraction form
    503,874,650.54/695,645,294.22 = 447,965,645.98/x
  3. Step 3: Cross multiply
    503,874,650.54x = 695,645,294.22 × 447,965,645.98
  4. Step 4: Simplify right side
    503,874,650.54x = 311,625,193,592,491,456
  5. Step 5: Solve for x
    x = 311,625,193,592,491,456/503,874,650.54
  6. Step 6: Final answer
    x = 618,457,771.71

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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.