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Finding the Third Proportional to 181,249,930 and 391,380,372

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Solution

The third proportional to 181,249,930 and 391,380,372 is: 845,123,612.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,249,930 : 391,380,372 = 391,380,372 : x
  2. Step 2: Convert to fraction form
    181,249,930/391,380,372 = 391,380,372/x
  3. Step 3: Cross multiply
    181,249,930x = 391,380,372 × 391,380,372
  4. Step 4: Simplify right side
    181,249,930x = 153,178,595,586,858,368
  5. Step 5: Solve for x
    x = 153,178,595,586,858,368/181,249,930
  6. Step 6: Final answer
    x = 845,123,612.39

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.