Home / 72,798,844.80-109,056,549.60-40,392,753.60

Finding the Fourth Proportional to 72,798,844.80, 109,056,549.60 and 40,392,753.60

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Solution

The fourth proportional to 72,798,844.80, 109,056,549.60 and 40,392,753.60 is: 60,510,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,798,844.80 : 109,056,549.60 = 40,392,753.60 : x
  2. Step 2: Convert to fraction form
    72,798,844.80/109,056,549.60 = 40,392,753.60/x
  3. Step 3: Cross multiply
    72,798,844.80x = 109,056,549.60 × 40,392,753.60
  4. Step 4: Simplify right side
    72,798,844.80x = 4,405,094,336,458,978.50
  5. Step 5: Solve for x
    x = 4,405,094,336,458,978.50/72,798,844.80
  6. Step 6: Final answer
    x = 60,510,497.78

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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.