Home / 2,051,815.95-2,831,850.45-1,389,227.31

Finding the Fourth Proportional to 2,051,815.95, 2,831,850.45 and 1,389,227.31

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Solution

The fourth proportional to 2,051,815.95, 2,831,850.45 and 1,389,227.31 is: 1,917,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051,815.95 : 2,831,850.45 = 1,389,227.31 : x
  2. Step 2: Convert to fraction form
    2,051,815.95/2,831,850.45 = 1,389,227.31/x
  3. Step 3: Cross multiply
    2,051,815.95x = 2,831,850.45 × 1,389,227.31
  4. Step 4: Simplify right side
    2,051,815.95x = 3,934,083,982,975.79
  5. Step 5: Solve for x
    x = 3,934,083,982,975.79/2,051,815.95
  6. Step 6: Final answer
    x = 1,917,366.90

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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.