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Finding the Third Proportional to 188,067,818 and 290,612,523

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Solution

The third proportional to 188,067,818 and 290,612,523 is: 449,070,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,067,818 : 290,612,523 = 290,612,523 : x
  2. Step 2: Convert to fraction form
    188,067,818/290,612,523 = 290,612,523/x
  3. Step 3: Cross multiply
    188,067,818x = 290,612,523 × 290,612,523
  4. Step 4: Simplify right side
    188,067,818x = 84,455,638,524,425,536
  5. Step 5: Solve for x
    x = 84,455,638,524,425,536/188,067,818
  6. Step 6: Final answer
    x = 449,070,124.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.