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Finding the Fourth Proportional to 29,142,012.80, 40,858,537.60 and 29,142,012.80

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Solution

The fourth proportional to 29,142,012.80, 40,858,537.60 and 29,142,012.80 is: 40,858,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,142,012.80 : 40,858,537.60 = 29,142,012.80 : x
  2. Step 2: Convert to fraction form
    29,142,012.80/40,858,537.60 = 29,142,012.80/x
  3. Step 3: Cross multiply
    29,142,012.80x = 40,858,537.60 × 29,142,012.80
  4. Step 4: Simplify right side
    29,142,012.80x = 1,190,700,025,728,481.25
  5. Step 5: Solve for x
    x = 1,190,700,025,728,481.25/29,142,012.80
  6. Step 6: Final answer
    x = 40,858,537.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.