Home / 2,187,000.51-3,018,062.60-1,220,131.00

Finding the Fourth Proportional to 2,187,000.51, 3,018,062.60 and 1,220,131.00

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Solution

The fourth proportional to 2,187,000.51, 3,018,062.60 and 1,220,131.00 is: 1,683,781.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,000.51 : 3,018,062.60 = 1,220,131.00 : x
  2. Step 2: Convert to fraction form
    2,187,000.51/3,018,062.60 = 1,220,131.00/x
  3. Step 3: Cross multiply
    2,187,000.51x = 3,018,062.60 × 1,220,131.00
  4. Step 4: Simplify right side
    2,187,000.51x = 3,682,431,740,448.01
  5. Step 5: Solve for x
    x = 3,682,431,740,448.01/2,187,000.51
  6. Step 6: Final answer
    x = 1,683,781.84

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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.