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Finding the Third Proportional to 86,663,801 and 134,623,407

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Solution

The third proportional to 86,663,801 and 134,623,407 is: 209,123,780.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,663,801 : 134,623,407 = 134,623,407 : x
  2. Step 2: Convert to fraction form
    86,663,801/134,623,407 = 134,623,407/x
  3. Step 3: Cross multiply
    86,663,801x = 134,623,407 × 134,623,407
  4. Step 4: Simplify right side
    86,663,801x = 18,123,461,712,287,648
  5. Step 5: Solve for x
    x = 18,123,461,712,287,648/86,663,801
  6. Step 6: Final answer
    x = 209,123,780.67

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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.