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Finding the Third Proportional to 74,718,856.50 and 154,212,493.50

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Solution

The third proportional to 74,718,856.50 and 154,212,493.50 is: 318,279,672.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,718,856.50 : 154,212,493.50 = 154,212,493.50 : x
  2. Step 2: Convert to fraction form
    74,718,856.50/154,212,493.50 = 154,212,493.50/x
  3. Step 3: Cross multiply
    74,718,856.50x = 154,212,493.50 × 154,212,493.50
  4. Step 4: Simplify right side
    74,718,856.50x = 23,781,493,151,487,544
  5. Step 5: Solve for x
    x = 23,781,493,151,487,544/74,718,856.50
  6. Step 6: Final answer
    x = 318,279,672.17

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.