Home / 39,915,756.45-55,083,697.25-21,580,998.21

Finding the Fourth Proportional to 39,915,756.45, 55,083,697.25 and 21,580,998.21

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Solution

The fourth proportional to 39,915,756.45, 55,083,697.25 and 21,580,998.21 is: 29,781,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915,756.45 : 55,083,697.25 = 21,580,998.21 : x
  2. Step 2: Convert to fraction form
    39,915,756.45/55,083,697.25 = 21,580,998.21/x
  3. Step 3: Cross multiply
    39,915,756.45x = 55,083,697.25 × 21,580,998.21
  4. Step 4: Simplify right side
    39,915,756.45x = 1,188,761,171,644,527
  5. Step 5: Solve for x
    x = 1,188,761,171,644,527/39,915,756.45
  6. Step 6: Final answer
    x = 29,781,752.30

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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.