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Finding the Third Proportional to 158,421,478 and 252,079,721

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Solution

The third proportional to 158,421,478 and 252,079,721 is: 401,108,401.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,421,478 : 252,079,721 = 252,079,721 : x
  2. Step 2: Convert to fraction form
    158,421,478/252,079,721 = 252,079,721/x
  3. Step 3: Cross multiply
    158,421,478x = 252,079,721 × 252,079,721
  4. Step 4: Simplify right side
    158,421,478x = 63,544,185,739,437,840
  5. Step 5: Solve for x
    x = 63,544,185,739,437,840/158,421,478
  6. Step 6: Final answer
    x = 401,108,401.09

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.