Home / 2,187,011.96-3,018,078.38-1,220,142.46

Finding the Fourth Proportional to 2,187,011.96, 3,018,078.38 and 1,220,142.46

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Solution

The fourth proportional to 2,187,011.96, 3,018,078.38 and 1,220,142.46 is: 1,683,797.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,011.96 : 3,018,078.38 = 1,220,142.46 : x
  2. Step 2: Convert to fraction form
    2,187,011.96/3,018,078.38 = 1,220,142.46/x
  3. Step 3: Cross multiply
    2,187,011.96x = 3,018,078.38 × 1,220,142.46
  4. Step 4: Simplify right side
    2,187,011.96x = 3,682,485,579,046.01
  5. Step 5: Solve for x
    x = 3,682,485,579,046.01/2,187,011.96
  6. Step 6: Final answer
    x = 1,683,797.64

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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.