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Finding the Third Proportional to 231,331,816 and 308,408,020

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Solution

The third proportional to 231,331,816 and 308,408,020 is: 411,164,830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,331,816 : 308,408,020 = 308,408,020 : x
  2. Step 2: Convert to fraction form
    231,331,816/308,408,020 = 308,408,020/x
  3. Step 3: Cross multiply
    231,331,816x = 308,408,020 × 308,408,020
  4. Step 4: Simplify right side
    231,331,816x = 95,115,506,800,320,400
  5. Step 5: Solve for x
    x = 95,115,506,800,320,400/231,331,816
  6. Step 6: Final answer
    x = 411,164,830.00

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.