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Finding the Third Proportional to 438,666,938 and 681,428,094

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Solution

The third proportional to 438,666,938 and 681,428,094 is: 1,058,534,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,666,938 : 681,428,094 = 681,428,094 : x
  2. Step 2: Convert to fraction form
    438,666,938/681,428,094 = 681,428,094/x
  3. Step 3: Cross multiply
    438,666,938x = 681,428,094 × 681,428,094
  4. Step 4: Simplify right side
    438,666,938x = 464,344,247,292,472,832
  5. Step 5: Solve for x
    x = 464,344,247,292,472,832/438,666,938
  6. Step 6: Final answer
    x = 1,058,534,863.40

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.