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Finding the Third Proportional to 45,117,439 and 66,856,821

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Solution

The third proportional to 45,117,439 and 66,856,821 is: 99,071,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,117,439 : 66,856,821 = 66,856,821 : x
  2. Step 2: Convert to fraction form
    45,117,439/66,856,821 = 66,856,821/x
  3. Step 3: Cross multiply
    45,117,439x = 66,856,821 × 66,856,821
  4. Step 4: Simplify right side
    45,117,439x = 4,469,834,514,226,041
  5. Step 5: Solve for x
    x = 4,469,834,514,226,041/45,117,439
  6. Step 6: Final answer
    x = 99,071,104.51

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.