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Finding the Third Proportional to 31,436,428 and 68,715,548

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Solution

The third proportional to 31,436,428 and 68,715,548 is: 150,202,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436,428 : 68,715,548 = 68,715,548 : x
  2. Step 2: Convert to fraction form
    31,436,428/68,715,548 = 68,715,548/x
  3. Step 3: Cross multiply
    31,436,428x = 68,715,548 × 68,715,548
  4. Step 4: Simplify right side
    31,436,428x = 4,721,826,536,940,304
  5. Step 5: Solve for x
    x = 4,721,826,536,940,304/31,436,428
  6. Step 6: Final answer
    x = 150,202,387.40

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.