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Finding the Fourth Proportional to 3,318,691,859.20, 4,978,037,788.80 and 3,318,691,859.20

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Solution

The fourth proportional to 3,318,691,859.20, 4,978,037,788.80 and 3,318,691,859.20 is: 4,978,037,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318,691,859.20 : 4,978,037,788.80 = 3,318,691,859.20 : x
  2. Step 2: Convert to fraction form
    3,318,691,859.20/4,978,037,788.80 = 3,318,691,859.20/x
  3. Step 3: Cross multiply
    3,318,691,859.20x = 4,978,037,788.80 × 3,318,691,859.20
  4. Step 4: Simplify right side
    3,318,691,859.20x = 16,520,573,484,480,528,384
  5. Step 5: Solve for x
    x = 16,520,573,484,480,528,384/3,318,691,859.20
  6. Step 6: Final answer
    x = 4,978,037,788.80

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1.5x scale

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.