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Finding the Third Proportional to 72,726,235 and 156,989,168

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Solution

The third proportional to 72,726,235 and 156,989,168 is: 338,881,819.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,726,235 : 156,989,168 = 156,989,168 : x
  2. Step 2: Convert to fraction form
    72,726,235/156,989,168 = 156,989,168/x
  3. Step 3: Cross multiply
    72,726,235x = 156,989,168 × 156,989,168
  4. Step 4: Simplify right side
    72,726,235x = 24,645,598,869,332,224
  5. Step 5: Solve for x
    x = 24,645,598,869,332,224/72,726,235
  6. Step 6: Final answer
    x = 338,881,819.87

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.