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Finding the Fourth Proportional to 1,978,019,767.30, 2,967,029,650.95 and 504,156,727.30

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Solution

The fourth proportional to 1,978,019,767.30, 2,967,029,650.95 and 504,156,727.30 is: 756,235,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,019,767.30 : 2,967,029,650.95 = 504,156,727.30 : x
  2. Step 2: Convert to fraction form
    1,978,019,767.30/2,967,029,650.95 = 504,156,727.30/x
  3. Step 3: Cross multiply
    1,978,019,767.30x = 2,967,029,650.95 × 504,156,727.30
  4. Step 4: Simplify right side
    1,978,019,767.30x = 1,495,847,958,625,013,248
  5. Step 5: Solve for x
    x = 1,495,847,958,625,013,248/1,978,019,767.30
  6. Step 6: Final answer
    x = 756,235,090.95

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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.