Home / 820,251,766.95-1,131,954,496.25-467,845,600.38

Finding the Fourth Proportional to 820,251,766.95, 1,131,954,496.25 and 467,845,600.38

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Solution

The fourth proportional to 820,251,766.95, 1,131,954,496.25 and 467,845,600.38 is: 645,630,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,251,766.95 : 1,131,954,496.25 = 467,845,600.38 : x
  2. Step 2: Convert to fraction form
    820,251,766.95/1,131,954,496.25 = 467,845,600.38/x
  3. Step 3: Cross multiply
    820,251,766.95x = 1,131,954,496.25 × 467,845,600.38
  4. Step 4: Simplify right side
    820,251,766.95x = 529,579,930,900,921,728
  5. Step 5: Solve for x
    x = 529,579,930,900,921,728/820,251,766.95
  6. Step 6: Final answer
    x = 645,630,954.10

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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.