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Finding the Third Proportional to 85,890,680 and 185,397,680

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Solution

The third proportional to 85,890,680 and 185,397,680 is: 400,186,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,890,680 : 185,397,680 = 185,397,680 : x
  2. Step 2: Convert to fraction form
    85,890,680/185,397,680 = 185,397,680/x
  3. Step 3: Cross multiply
    85,890,680x = 185,397,680 × 185,397,680
  4. Step 4: Simplify right side
    85,890,680x = 34,372,299,749,382,400
  5. Step 5: Solve for x
    x = 34,372,299,749,382,400/85,890,680
  6. Step 6: Final answer
    x = 400,186,606.39

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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.