Home / 3,945,810.28-5,918,977.86-1,386,715.72

Finding the Fourth Proportional to 3,945,810.28, 5,918,977.86 and 1,386,715.72

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Solution

The fourth proportional to 3,945,810.28, 5,918,977.86 and 1,386,715.72 is: 2,080,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945,810.28 : 5,918,977.86 = 1,386,715.72 : x
  2. Step 2: Convert to fraction form
    3,945,810.28/5,918,977.86 = 1,386,715.72/x
  3. Step 3: Cross multiply
    3,945,810.28x = 5,918,977.86 × 1,386,715.72
  4. Step 4: Simplify right side
    3,945,810.28x = 8,207,939,644,793.96
  5. Step 5: Solve for x
    x = 8,207,939,644,793.96/3,945,810.28
  6. Step 6: Final answer
    x = 2,080,165.81

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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.