Home / 820,251,765.95-1,131,954,494.87-467,845,599.38

Finding the Fourth Proportional to 820,251,765.95, 1,131,954,494.87 and 467,845,599.38

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Solution

The fourth proportional to 820,251,765.95, 1,131,954,494.87 and 467,845,599.38 is: 645,630,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,251,765.95 : 1,131,954,494.87 = 467,845,599.38 : x
  2. Step 2: Convert to fraction form
    820,251,765.95/1,131,954,494.87 = 467,845,599.38/x
  3. Step 3: Cross multiply
    820,251,765.95x = 1,131,954,494.87 × 467,845,599.38
  4. Step 4: Simplify right side
    820,251,765.95x = 529,579,929,123,340,224
  5. Step 5: Solve for x
    x = 529,579,929,123,340,224/820,251,765.95
  6. Step 6: Final answer
    x = 645,630,952.72

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1.5x scale

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.