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Finding the Third Proportional to 408,351,124.50 and 627,664,939.50

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Solution

The third proportional to 408,351,124.50 and 627,664,939.50 is: 964,765,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,351,124.50 : 627,664,939.50 = 627,664,939.50 : x
  2. Step 2: Convert to fraction form
    408,351,124.50/627,664,939.50 = 627,664,939.50/x
  3. Step 3: Cross multiply
    408,351,124.50x = 627,664,939.50 × 627,664,939.50
  4. Step 4: Simplify right side
    408,351,124.50x = 393,963,276,277,538,688
  5. Step 5: Solve for x
    x = 393,963,276,277,538,688/408,351,124.50
  6. Step 6: Final answer
    x = 964,765,988.49

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.