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Finding the Third Proportional to 438,666,922.50 and 681,428,072.25

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Solution

The third proportional to 438,666,922.50 and 681,428,072.25 is: 1,058,534,833.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,666,922.50 : 681,428,072.25 = 681,428,072.25 : x
  2. Step 2: Convert to fraction form
    438,666,922.50/681,428,072.25 = 681,428,072.25/x
  3. Step 3: Cross multiply
    438,666,922.50x = 681,428,072.25 × 681,428,072.25
  4. Step 4: Simplify right side
    438,666,922.50x = 464,344,217,650,351,232
  5. Step 5: Solve for x
    x = 464,344,217,650,351,232/438,666,922.50
  6. Step 6: Final answer
    x = 1,058,534,833.23

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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.