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Finding the Third Proportional to 68,874,078 and 149,854,572

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Solution

The third proportional to 68,874,078 and 149,854,572 is: 326,049,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,874,078 : 149,854,572 = 149,854,572 : x
  2. Step 2: Convert to fraction form
    68,874,078/149,854,572 = 149,854,572/x
  3. Step 3: Cross multiply
    68,874,078x = 149,854,572 × 149,854,572
  4. Step 4: Simplify right side
    68,874,078x = 22,456,392,749,303,184
  5. Step 5: Solve for x
    x = 22,456,392,749,303,184/68,874,078
  6. Step 6: Final answer
    x = 326,049,994.44

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.