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Finding the Fourth Proportional to 266,771,321.60, 400,057,449.60 and 105,179,820.80

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Solution

The fourth proportional to 266,771,321.60, 400,057,449.60 and 105,179,820.80 is: 157,730,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,771,321.60 : 400,057,449.60 = 105,179,820.80 : x
  2. Step 2: Convert to fraction form
    266,771,321.60/400,057,449.60 = 105,179,820.80/x
  3. Step 3: Cross multiply
    266,771,321.60x = 400,057,449.60 × 105,179,820.80
  4. Step 4: Simplify right side
    266,771,321.60x = 42,077,970,858,633,032
  5. Step 5: Solve for x
    x = 42,077,970,858,633,032/266,771,321.60
  6. Step 6: Final answer
    x = 157,730,488.44

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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.