Home / 20,643,212.64-30,947,497.92-9,126,820.56

Finding the Fourth Proportional to 20,643,212.64, 30,947,497.92 and 9,126,820.56

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Solution

The fourth proportional to 20,643,212.64, 30,947,497.92 and 9,126,820.56 is: 13,682,572.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,212.64 : 30,947,497.92 = 9,126,820.56 : x
  2. Step 2: Convert to fraction form
    20,643,212.64/30,947,497.92 = 9,126,820.56/x
  3. Step 3: Cross multiply
    20,643,212.64x = 30,947,497.92 × 9,126,820.56
  4. Step 4: Simplify right side
    20,643,212.64x = 282,452,260,296,813.25
  5. Step 5: Solve for x
    x = 282,452,260,296,813.25/20,643,212.64
  6. Step 6: Final answer
    x = 13,682,572.83

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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.