Home / 3,115,891.80-4,673,837.70-1,947,742.20

Finding the Fourth Proportional to 3,115,891.80, 4,673,837.70 and 1,947,742.20

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Solution

The fourth proportional to 3,115,891.80, 4,673,837.70 and 1,947,742.20 is: 2,921,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,891.80 : 4,673,837.70 = 1,947,742.20 : x
  2. Step 2: Convert to fraction form
    3,115,891.80/4,673,837.70 = 1,947,742.20/x
  3. Step 3: Cross multiply
    3,115,891.80x = 4,673,837.70 × 1,947,742.20
  4. Step 4: Simplify right side
    3,115,891.80x = 9,103,430,924,240.94
  5. Step 5: Solve for x
    x = 9,103,430,924,240.94/3,115,891.80
  6. Step 6: Final answer
    x = 2,921,613.30

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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.