Home / 2,187,007.46-3,018,072.18-1,220,137.96

Finding the Fourth Proportional to 2,187,007.46, 3,018,072.18 and 1,220,137.96

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Solution

The fourth proportional to 2,187,007.46, 3,018,072.18 and 1,220,137.96 is: 1,683,791.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,007.46 : 3,018,072.18 = 1,220,137.96 : x
  2. Step 2: Convert to fraction form
    2,187,007.46/3,018,072.18 = 1,220,137.96/x
  3. Step 3: Cross multiply
    2,187,007.46x = 3,018,072.18 × 1,220,137.96
  4. Step 4: Simplify right side
    2,187,007.46x = 3,682,464,432,837.95
  5. Step 5: Solve for x
    x = 3,682,464,432,837.95/2,187,007.46
  6. Step 6: Final answer
    x = 1,683,791.44

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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.