Home / 3,202,423.90-4,418,908.53-1,912,990.57

Finding the Fourth Proportional to 3,202,423.90, 4,418,908.53 and 1,912,990.57

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Solution

The fourth proportional to 3,202,423.90, 4,418,908.53 and 1,912,990.57 is: 2,639,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202,423.90 : 4,418,908.53 = 1,912,990.57 : x
  2. Step 2: Convert to fraction form
    3,202,423.90/4,418,908.53 = 1,912,990.57/x
  3. Step 3: Cross multiply
    3,202,423.90x = 4,418,908.53 × 1,912,990.57
  4. Step 4: Simplify right side
    3,202,423.90x = 8,453,330,329,361.58
  5. Step 5: Solve for x
    x = 8,453,330,329,361.58/3,202,423.90
  6. Step 6: Final answer
    x = 2,639,666.27

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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.