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Finding the Fourth Proportional to 217,087,218.30, 304,728,321.30 and 217,087,218.30

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Solution

The fourth proportional to 217,087,218.30, 304,728,321.30 and 217,087,218.30 is: 304,728,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,087,218.30 : 304,728,321.30 = 217,087,218.30 : x
  2. Step 2: Convert to fraction form
    217,087,218.30/304,728,321.30 = 217,087,218.30/x
  3. Step 3: Cross multiply
    217,087,218.30x = 304,728,321.30 × 217,087,218.30
  4. Step 4: Simplify right side
    217,087,218.30x = 66,152,623,608,245,648
  5. Step 5: Solve for x
    x = 66,152,623,608,245,648/217,087,218.30
  6. Step 6: Final answer
    x = 304,728,321.30

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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.