Home / 28,040,512.70-42,060,769.05-12,084,160.70

Finding the Fourth Proportional to 28,040,512.70, 42,060,769.05 and 12,084,160.70

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Solution

The fourth proportional to 28,040,512.70, 42,060,769.05 and 12,084,160.70 is: 18,126,241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,512.70 : 42,060,769.05 = 12,084,160.70 : x
  2. Step 2: Convert to fraction form
    28,040,512.70/42,060,769.05 = 12,084,160.70/x
  3. Step 3: Cross multiply
    28,040,512.70x = 42,060,769.05 × 12,084,160.70
  4. Step 4: Simplify right side
    28,040,512.70x = 508,269,092,365,786.25
  5. Step 5: Solve for x
    x = 508,269,092,365,786.25/28,040,512.70
  6. Step 6: Final answer
    x = 18,126,241.05

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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.