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Finding the Third Proportional to 85,432,932 and 186,390,453

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Solution

The third proportional to 85,432,932 and 186,390,453 is: 406,651,160.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,432,932 : 186,390,453 = 186,390,453 : x
  2. Step 2: Convert to fraction form
    85,432,932/186,390,453 = 186,390,453/x
  3. Step 3: Cross multiply
    85,432,932x = 186,390,453 × 186,390,453
  4. Step 4: Simplify right side
    85,432,932x = 34,741,400,969,545,208
  5. Step 5: Solve for x
    x = 34,741,400,969,545,208/85,432,932
  6. Step 6: Final answer
    x = 406,651,160.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.