Home / 3,420,975.96-5,127,920.64-2,815,576.02

Finding the Fourth Proportional to 3,420,975.96, 5,127,920.64 and 2,815,576.02

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Solution

The fourth proportional to 3,420,975.96, 5,127,920.64 and 2,815,576.02 is: 4,220,447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420,975.96 : 5,127,920.64 = 2,815,576.02 : x
  2. Step 2: Convert to fraction form
    3,420,975.96/5,127,920.64 = 2,815,576.02/x
  3. Step 3: Cross multiply
    3,420,975.96x = 5,127,920.64 × 2,815,576.02
  4. Step 4: Simplify right side
    3,420,975.96x = 14,438,050,386,447.05
  5. Step 5: Solve for x
    x = 14,438,050,386,447.05/3,420,975.96
  6. Step 6: Final answer
    x = 4,220,447.78

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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.