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Finding the Fourth Proportional to 81,741,807,008.40, 122,612,710,512.60 and 81,741,807,008.40

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Solution

The fourth proportional to 81,741,807,008.40, 122,612,710,512.60 and 81,741,807,008.40 is: 122,612,710,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,741,807,008.40 : 122,612,710,512.60 = 81,741,807,008.40 : x
  2. Step 2: Convert to fraction form
    81,741,807,008.40/122,612,710,512.60 = 81,741,807,008.40/x
  3. Step 3: Cross multiply
    81,741,807,008.40x = 122,612,710,512.60 × 81,741,807,008.40
  4. Step 4: Simplify right side
    81,741,807,008.40x = 10,022,584,519,497,766,404,096
  5. Step 5: Solve for x
    x = 10,022,584,519,497,766,404,096/81,741,807,008.40
  6. Step 6: Final answer
    x = 122,612,710,512.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.