Home / 72,845,905.20-109,268,857.80-36,566,199.60

Finding the Fourth Proportional to 72,845,905.20, 109,268,857.80 and 36,566,199.60

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Solution

The fourth proportional to 72,845,905.20, 109,268,857.80 and 36,566,199.60 is: 54,849,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,845,905.20 : 109,268,857.80 = 36,566,199.60 : x
  2. Step 2: Convert to fraction form
    72,845,905.20/109,268,857.80 = 36,566,199.60/x
  3. Step 3: Cross multiply
    72,845,905.20x = 109,268,857.80 × 36,566,199.60
  4. Step 4: Simplify right side
    72,845,905.20x = 3,995,546,864,378,817
  5. Step 5: Solve for x
    x = 3,995,546,864,378,817/72,845,905.20
  6. Step 6: Final answer
    x = 54,849,299.40

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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.