Home / 2,187,021.35-3,018,091.34-1,220,151.79

Finding the Fourth Proportional to 2,187,021.35, 3,018,091.34 and 1,220,151.79

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Solution

The fourth proportional to 2,187,021.35, 3,018,091.34 and 1,220,151.79 is: 1,683,810.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,021.35 : 3,018,091.34 = 1,220,151.79 : x
  2. Step 2: Convert to fraction form
    2,187,021.35/3,018,091.34 = 1,220,151.79/x
  3. Step 3: Cross multiply
    2,187,021.35x = 3,018,091.34 × 1,220,151.79
  4. Step 4: Simplify right side
    2,187,021.35x = 3,682,529,550,884.50
  5. Step 5: Solve for x
    x = 3,682,529,550,884.50/2,187,021.35
  6. Step 6: Final answer
    x = 1,683,810.52

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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.