Home / 40,090,761.44-55,325,286.96-21,756,047.12

Finding the Fourth Proportional to 40,090,761.44, 55,325,286.96 and 21,756,047.12

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Solution

The fourth proportional to 40,090,761.44, 55,325,286.96 and 21,756,047.12 is: 30,023,364.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,090,761.44 : 55,325,286.96 = 21,756,047.12 : x
  2. Step 2: Convert to fraction form
    40,090,761.44/55,325,286.96 = 21,756,047.12/x
  3. Step 3: Cross multiply
    40,090,761.44x = 55,325,286.96 × 21,756,047.12
  4. Step 4: Simplify right side
    40,090,761.44x = 1,203,659,550,029,281.75
  5. Step 5: Solve for x
    x = 1,203,659,550,029,281.75/40,090,761.44
  6. Step 6: Final answer
    x = 30,023,364.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.