Home / 18,591,510.69-25,629,244.43-12,992,373.90

Finding the Fourth Proportional to 18,591,510.69, 25,629,244.43 and 12,992,373.90

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Solution

The fourth proportional to 18,591,510.69, 25,629,244.43 and 12,992,373.90 is: 17,910,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591,510.69 : 25,629,244.43 = 12,992,373.90 : x
  2. Step 2: Convert to fraction form
    18,591,510.69/25,629,244.43 = 12,992,373.90/x
  3. Step 3: Cross multiply
    18,591,510.69x = 25,629,244.43 × 12,992,373.90
  4. Step 4: Simplify right side
    18,591,510.69x = 332,984,726,409,052.38
  5. Step 5: Solve for x
    x = 332,984,726,409,052.38/18,591,510.69
  6. Step 6: Final answer
    x = 17,910,579.29

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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.