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Finding the Third Proportional to 100,812,821 and 155,696,345

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Solution

The third proportional to 100,812,821 and 155,696,345 is: 240,459,017.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,812,821 : 155,696,345 = 155,696,345 : x
  2. Step 2: Convert to fraction form
    100,812,821/155,696,345 = 155,696,345/x
  3. Step 3: Cross multiply
    100,812,821x = 155,696,345 × 155,696,345
  4. Step 4: Simplify right side
    100,812,821x = 24,241,351,846,359,024
  5. Step 5: Solve for x
    x = 24,241,351,846,359,024/100,812,821
  6. Step 6: Final answer
    x = 240,459,017.08

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.