Home / 20,372,952.96-28,114,689.60-11,206,293.12

Finding the Fourth Proportional to 20,372,952.96, 28,114,689.60 and 11,206,293.12

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Solution

The fourth proportional to 20,372,952.96, 28,114,689.60 and 11,206,293.12 is: 15,464,692.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372,952.96 : 28,114,689.60 = 11,206,293.12 : x
  2. Step 2: Convert to fraction form
    20,372,952.96/28,114,689.60 = 11,206,293.12/x
  3. Step 3: Cross multiply
    20,372,952.96x = 28,114,689.60 × 11,206,293.12
  4. Step 4: Simplify right side
    20,372,952.96x = 315,061,452,635,415.56
  5. Step 5: Solve for x
    x = 315,061,452,635,415.56/20,372,952.96
  6. Step 6: Final answer
    x = 15,464,692.49

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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.