Home / 2,645,105.64-3,643,766.82-1,917,816.36

Finding the Fourth Proportional to 2,645,105.64, 3,643,766.82 and 1,917,816.36

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Solution

The fourth proportional to 2,645,105.64, 3,643,766.82 and 1,917,816.36 is: 2,641,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645,105.64 : 3,643,766.82 = 1,917,816.36 : x
  2. Step 2: Convert to fraction form
    2,645,105.64/3,643,766.82 = 1,917,816.36/x
  3. Step 3: Cross multiply
    2,645,105.64x = 3,643,766.82 × 1,917,816.36
  4. Step 4: Simplify right side
    2,645,105.64x = 6,988,075,619,421.18
  5. Step 5: Solve for x
    x = 6,988,075,619,421.18/2,645,105.64
  6. Step 6: Final answer
    x = 2,641,889.05

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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.