Home / 2,187,001.02-3,018,063.29-1,220,131.50

Finding the Fourth Proportional to 2,187,001.02, 3,018,063.29 and 1,220,131.50

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Solution

The fourth proportional to 2,187,001.02, 3,018,063.29 and 1,220,131.50 is: 1,683,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,001.02 : 3,018,063.29 = 1,220,131.50 : x
  2. Step 2: Convert to fraction form
    2,187,001.02/3,018,063.29 = 1,220,131.50/x
  3. Step 3: Cross multiply
    2,187,001.02x = 3,018,063.29 × 1,220,131.50
  4. Step 4: Simplify right side
    2,187,001.02x = 3,682,434,089,122.64
  5. Step 5: Solve for x
    x = 3,682,434,089,122.64/2,187,001.02
  6. Step 6: Final answer
    x = 1,683,782.52

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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.