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Finding the Third Proportional to 91,978,854 and 200,287,308

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Solution

The third proportional to 91,978,854 and 200,287,308 is: 436,132,915.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,978,854 : 200,287,308 = 200,287,308 : x
  2. Step 2: Convert to fraction form
    91,978,854/200,287,308 = 200,287,308/x
  3. Step 3: Cross multiply
    91,978,854x = 200,287,308 × 200,287,308
  4. Step 4: Simplify right side
    91,978,854x = 40,115,005,745,886,864
  5. Step 5: Solve for x
    x = 40,115,005,745,886,864/91,978,854
  6. Step 6: Final answer
    x = 436,132,915.35

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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.