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Finding the Third Proportional to 396,781,652.25 and 554,965,337.25

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Solution

The third proportional to 396,781,652.25 and 554,965,337.25 is: 776,211,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,781,652.25 : 554,965,337.25 = 554,965,337.25 : x
  2. Step 2: Convert to fraction form
    396,781,652.25/554,965,337.25 = 554,965,337.25/x
  3. Step 3: Cross multiply
    396,781,652.25x = 554,965,337.25 × 554,965,337.25
  4. Step 4: Simplify right side
    396,781,652.25x = 307,986,525,549,006,208
  5. Step 5: Solve for x
    x = 307,986,525,549,006,208/396,781,652.25
  6. Step 6: Final answer
    x = 776,211,611.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.