Home / 20,643,188.64-30,947,461.92-9,126,796.56

Finding the Fourth Proportional to 20,643,188.64, 30,947,461.92 and 9,126,796.56

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Solution

The fourth proportional to 20,643,188.64, 30,947,461.92 and 9,126,796.56 is: 13,682,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,188.64 : 30,947,461.92 = 9,126,796.56 : x
  2. Step 2: Convert to fraction form
    20,643,188.64/30,947,461.92 = 9,126,796.56/x
  3. Step 3: Cross multiply
    20,643,188.64x = 30,947,461.92 × 9,126,796.56
  4. Step 4: Simplify right side
    20,643,188.64x = 282,451,188,992,187
  5. Step 5: Solve for x
    x = 282,451,188,992,187/20,643,188.64
  6. Step 6: Final answer
    x = 13,682,536.84

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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.