Home / 3,909,887.21-5,395,592.25-2,191,041.29

Finding the Fourth Proportional to 3,909,887.21, 5,395,592.25 and 2,191,041.29

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Solution

The fourth proportional to 3,909,887.21, 5,395,592.25 and 2,191,041.29 is: 3,023,607.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909,887.21 : 5,395,592.25 = 2,191,041.29 : x
  2. Step 2: Convert to fraction form
    3,909,887.21/5,395,592.25 = 2,191,041.29/x
  3. Step 3: Cross multiply
    3,909,887.21x = 5,395,592.25 × 2,191,041.29
  4. Step 4: Simplify right side
    3,909,887.21x = 11,821,965,365,820.84
  5. Step 5: Solve for x
    x = 11,821,965,365,820.84/3,909,887.21
  6. Step 6: Final answer
    x = 3,023,607.78

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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.