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Finding the Third Proportional to 266,960,955 and 413,143,312.50

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Solution

The third proportional to 266,960,955 and 413,143,312.50 is: 639,372,138.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,960,955 : 413,143,312.50 = 413,143,312.50 : x
  2. Step 2: Convert to fraction form
    266,960,955/413,143,312.50 = 413,143,312.50/x
  3. Step 3: Cross multiply
    266,960,955x = 413,143,312.50 × 413,143,312.50
  4. Step 4: Simplify right side
    266,960,955x = 170,687,396,663,472,672
  5. Step 5: Solve for x
    x = 170,687,396,663,472,672/266,960,955
  6. Step 6: Final answer
    x = 639,372,138.38

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.