Home / 20,385,692.49-28,132,260.21-11,218,335.24

Finding the Fourth Proportional to 20,385,692.49, 28,132,260.21 and 11,218,335.24

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Solution

The fourth proportional to 20,385,692.49, 28,132,260.21 and 11,218,335.24 is: 15,481,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385,692.49 : 28,132,260.21 = 11,218,335.24 : x
  2. Step 2: Convert to fraction form
    20,385,692.49/28,132,260.21 = 11,218,335.24/x
  3. Step 3: Cross multiply
    20,385,692.49x = 28,132,260.21 × 11,218,335.24
  4. Step 4: Simplify right side
    20,385,692.49x = 315,597,126,094,692.81
  5. Step 5: Solve for x
    x = 315,597,126,094,692.81/20,385,692.49
  6. Step 6: Final answer
    x = 15,481,305.15

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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.