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Finding the Third Proportional to 143,247,636 and 306,916,320

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Solution

The third proportional to 143,247,636 and 306,916,320 is: 657,585,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,247,636 : 306,916,320 = 306,916,320 : x
  2. Step 2: Convert to fraction form
    143,247,636/306,916,320 = 306,916,320/x
  3. Step 3: Cross multiply
    143,247,636x = 306,916,320 × 306,916,320
  4. Step 4: Simplify right side
    143,247,636x = 94,197,627,482,342,400
  5. Step 5: Solve for x
    x = 94,197,627,482,342,400/143,247,636
  6. Step 6: Final answer
    x = 657,585,912.85

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.