Home / 20,036,511.15-30,056,013.41-7,257,126.57

Finding the Fourth Proportional to 20,036,511.15, 30,056,013.41 and 7,257,126.57

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Solution

The fourth proportional to 20,036,511.15, 30,056,013.41 and 7,257,126.57 is: 10,886,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036,511.15 : 30,056,013.41 = 7,257,126.57 : x
  2. Step 2: Convert to fraction form
    20,036,511.15/30,056,013.41 = 7,257,126.57/x
  3. Step 3: Cross multiply
    20,036,511.15x = 30,056,013.41 × 7,257,126.57
  4. Step 4: Simplify right side
    20,036,511.15x = 218,120,293,469,701.69
  5. Step 5: Solve for x
    x = 218,120,293,469,701.69/20,036,511.15
  6. Step 6: Final answer
    x = 10,886,141.40

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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.