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Finding the Third Proportional to 85,109,520 and 134,789,520

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Solution

The third proportional to 85,109,520 and 134,789,520 is: 213,468,654.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,109,520 : 134,789,520 = 134,789,520 : x
  2. Step 2: Convert to fraction form
    85,109,520/134,789,520 = 134,789,520/x
  3. Step 3: Cross multiply
    85,109,520x = 134,789,520 × 134,789,520
  4. Step 4: Simplify right side
    85,109,520x = 18,168,214,701,830,400
  5. Step 5: Solve for x
    x = 18,168,214,701,830,400/85,109,520
  6. Step 6: Final answer
    x = 213,468,654.29

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.