Home / 18,381,185.70-27,571,778.55-15,511,404.30

Finding the Fourth Proportional to 18,381,185.70, 27,571,778.55 and 15,511,404.30

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Solution

The fourth proportional to 18,381,185.70, 27,571,778.55 and 15,511,404.30 is: 23,267,106.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,185.70 : 27,571,778.55 = 15,511,404.30 : x
  2. Step 2: Convert to fraction form
    18,381,185.70/27,571,778.55 = 15,511,404.30/x
  3. Step 3: Cross multiply
    18,381,185.70x = 27,571,778.55 × 15,511,404.30
  4. Step 4: Simplify right side
    18,381,185.70x = 427,677,004,359,117.81
  5. Step 5: Solve for x
    x = 427,677,004,359,117.81/18,381,185.70
  6. Step 6: Final answer
    x = 23,267,106.45

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1.5x scale

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.