Home / 3,419,079.80-5,128,619.70-2,621,918.30

Finding the Fourth Proportional to 3,419,079.80, 5,128,619.70 and 2,621,918.30

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Solution

The fourth proportional to 3,419,079.80, 5,128,619.70 and 2,621,918.30 is: 3,932,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,079.80 : 5,128,619.70 = 2,621,918.30 : x
  2. Step 2: Convert to fraction form
    3,419,079.80/5,128,619.70 = 2,621,918.30/x
  3. Step 3: Cross multiply
    3,419,079.80x = 5,128,619.70 × 2,621,918.30
  4. Step 4: Simplify right side
    3,419,079.80x = 13,446,821,845,170.51
  5. Step 5: Solve for x
    x = 13,446,821,845,170.51/3,419,079.80
  6. Step 6: Final answer
    x = 3,932,877.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.