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Finding the Third Proportional to 79,831,376 and 111,225,216

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Solution

The third proportional to 79,831,376 and 111,225,216 is: 154,964,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,831,376 : 111,225,216 = 111,225,216 : x
  2. Step 2: Convert to fraction form
    79,831,376/111,225,216 = 111,225,216/x
  3. Step 3: Cross multiply
    79,831,376x = 111,225,216 × 111,225,216
  4. Step 4: Simplify right side
    79,831,376x = 12,371,048,674,246,656
  5. Step 5: Solve for x
    x = 12,371,048,674,246,656/79,831,376
  6. Step 6: Final answer
    x = 154,964,743.11

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.