Home / 2,918,772.22-4,378,173.89-1,914,255.31

Finding the Fourth Proportional to 2,918,772.22, 4,378,173.89 and 1,914,255.31

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Solution

The fourth proportional to 2,918,772.22, 4,378,173.89 and 1,914,255.31 is: 2,871,393.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,772.22 : 4,378,173.89 = 1,914,255.31 : x
  2. Step 2: Convert to fraction form
    2,918,772.22/4,378,173.89 = 1,914,255.31/x
  3. Step 3: Cross multiply
    2,918,772.22x = 4,378,173.89 × 1,914,255.31
  4. Step 4: Simplify right side
    2,918,772.22x = 8,380,942,631,914.06
  5. Step 5: Solve for x
    x = 8,380,942,631,914.06/2,918,772.22
  6. Step 6: Final answer
    x = 2,871,393.18

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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.