Home / 3,909,945.60-5,395,795.20-2,191,057.92

Finding the Fourth Proportional to 3,909,945.60, 5,395,795.20 and 2,191,057.92

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Solution

The fourth proportional to 3,909,945.60, 5,395,795.20 and 2,191,057.92 is: 3,023,699.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909,945.60 : 5,395,795.20 = 2,191,057.92 : x
  2. Step 2: Convert to fraction form
    3,909,945.60/5,395,795.20 = 2,191,057.92/x
  3. Step 3: Cross multiply
    3,909,945.60x = 5,395,795.20 × 2,191,057.92
  4. Step 4: Simplify right side
    3,909,945.60x = 11,822,499,807,657.98
  5. Step 5: Solve for x
    x = 11,822,499,807,657.98/3,909,945.60
  6. Step 6: Final answer
    x = 3,023,699.31

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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.