Home / 2,818,125-3,889,022.22-1,528,971.12

Finding the Fourth Proportional to 2,818,125, 3,889,022.22 and 1,528,971.12

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Solution

The fourth proportional to 2,818,125, 3,889,022.22 and 1,528,971.12 is: 2,109,985.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818,125 : 3,889,022.22 = 1,528,971.12 : x
  2. Step 2: Convert to fraction form
    2,818,125/3,889,022.22 = 1,528,971.12/x
  3. Step 3: Cross multiply
    2,818,125x = 3,889,022.22 × 1,528,971.12
  4. Step 4: Simplify right side
    2,818,125x = 5,946,202,659,418.29
  5. Step 5: Solve for x
    x = 5,946,202,659,418.29/2,818,125
  6. Step 6: Final answer
    x = 2,109,985.42

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Double scale
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1.5x scale

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.