Home / 20,577,969.28-28,395,550.62-11,878,944.37

Finding the Fourth Proportional to 20,577,969.28, 28,395,550.62 and 11,878,944.37

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Solution

The fourth proportional to 20,577,969.28, 28,395,550.62 and 11,878,944.37 is: 16,391,761.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,969.28 : 28,395,550.62 = 11,878,944.37 : x
  2. Step 2: Convert to fraction form
    20,577,969.28/28,395,550.62 = 11,878,944.37/x
  3. Step 3: Cross multiply
    20,577,969.28x = 28,395,550.62 × 11,878,944.37
  4. Step 4: Simplify right side
    20,577,969.28x = 337,309,166,170,499
  5. Step 5: Solve for x
    x = 337,309,166,170,499/20,577,969.28
  6. Step 6: Final answer
    x = 16,391,761.58

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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.