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Finding the Third Proportional to 131,756,812 and 286,194,818

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Solution

The third proportional to 131,756,812 and 286,194,818 is: 621,656,463.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,756,812 : 286,194,818 = 286,194,818 : x
  2. Step 2: Convert to fraction form
    131,756,812/286,194,818 = 286,194,818/x
  3. Step 3: Cross multiply
    131,756,812x = 286,194,818 × 286,194,818
  4. Step 4: Simplify right side
    131,756,812x = 81,907,473,850,053,120
  5. Step 5: Solve for x
    x = 81,907,473,850,053,120/131,756,812
  6. Step 6: Final answer
    x = 621,656,463.96

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.