Home / 2,190,003.56-3,021,765.97-1,222,985.06

Finding the Fourth Proportional to 2,190,003.56, 3,021,765.97 and 1,222,985.06

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Solution

The fourth proportional to 2,190,003.56, 3,021,765.97 and 1,222,985.06 is: 1,687,474.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,003.56 : 3,021,765.97 = 1,222,985.06 : x
  2. Step 2: Convert to fraction form
    2,190,003.56/3,021,765.97 = 1,222,985.06/x
  3. Step 3: Cross multiply
    2,190,003.56x = 3,021,765.97 × 1,222,985.06
  4. Step 4: Simplify right side
    2,190,003.56x = 3,695,574,636,126.41
  5. Step 5: Solve for x
    x = 3,695,574,636,126.41/2,190,003.56
  6. Step 6: Final answer
    x = 1,687,474.26

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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.