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Finding the Third Proportional to 72,070,508 and 111,688,635

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Solution

The third proportional to 72,070,508 and 111,688,635 is: 173,085,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070,508 : 111,688,635 = 111,688,635 : x
  2. Step 2: Convert to fraction form
    72,070,508/111,688,635 = 111,688,635/x
  3. Step 3: Cross multiply
    72,070,508x = 111,688,635 × 111,688,635
  4. Step 4: Simplify right side
    72,070,508x = 12,474,351,188,163,224
  5. Step 5: Solve for x
    x = 12,474,351,188,163,224/72,070,508
  6. Step 6: Final answer
    x = 173,085,378.95

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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.