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Finding the Third Proportional to 38,871,390 and 89,989,563

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Solution

The third proportional to 38,871,390 and 89,989,563 is: 208,331,151.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,871,390 : 89,989,563 = 89,989,563 : x
  2. Step 2: Convert to fraction form
    38,871,390/89,989,563 = 89,989,563/x
  3. Step 3: Cross multiply
    38,871,390x = 89,989,563 × 89,989,563
  4. Step 4: Simplify right side
    38,871,390x = 8,098,121,448,930,969
  5. Step 5: Solve for x
    x = 8,098,121,448,930,969/38,871,390
  6. Step 6: Final answer
    x = 208,331,151.75

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.