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Finding the Third Proportional to 67,218,543 and 144,652,290.75

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Solution

The third proportional to 67,218,543 and 144,652,290.75 is: 311,287,396.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,218,543 : 144,652,290.75 = 144,652,290.75 : x
  2. Step 2: Convert to fraction form
    67,218,543/144,652,290.75 = 144,652,290.75/x
  3. Step 3: Cross multiply
    67,218,543x = 144,652,290.75 × 144,652,290.75
  4. Step 4: Simplify right side
    67,218,543x = 20,924,285,219,222,536
  5. Step 5: Solve for x
    x = 20,924,285,219,222,536/67,218,543
  6. Step 6: Final answer
    x = 311,287,396.09

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.