Home / 2,782,753.05-4,178,868.87-1,811,770.16

Finding the Fourth Proportional to 2,782,753.05, 4,178,868.87 and 1,811,770.16

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Solution

The fourth proportional to 2,782,753.05, 4,178,868.87 and 1,811,770.16 is: 2,720,740.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782,753.05 : 4,178,868.87 = 1,811,770.16 : x
  2. Step 2: Convert to fraction form
    2,782,753.05/4,178,868.87 = 1,811,770.16/x
  3. Step 3: Cross multiply
    2,782,753.05x = 4,178,868.87 × 1,811,770.16
  4. Step 4: Simplify right side
    2,782,753.05x = 7,571,149,918,871.78
  5. Step 5: Solve for x
    x = 7,571,149,918,871.78/2,782,753.05
  6. Step 6: Final answer
    x = 2,720,740.86

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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.