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Finding the Fourth Proportional to 203,472,208.20, 285,243,729 and 203,472,208.20

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Solution

The fourth proportional to 203,472,208.20, 285,243,729 and 203,472,208.20 is: 285,243,729

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,472,208.20 : 285,243,729 = 203,472,208.20 : x
  2. Step 2: Convert to fraction form
    203,472,208.20/285,243,729 = 203,472,208.20/x
  3. Step 3: Cross multiply
    203,472,208.20x = 285,243,729 × 203,472,208.20
  4. Step 4: Simplify right side
    203,472,208.20x = 58,039,171,414,832,376
  5. Step 5: Solve for x
    x = 58,039,171,414,832,376/203,472,208.20
  6. Step 6: Final answer
    x = 285,243,729

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.