Home / 5,315,121.72-7,973,731.80-1,949,357.88

Finding the Fourth Proportional to 5,315,121.72, 7,973,731.80 and 1,949,357.88

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Solution

The fourth proportional to 5,315,121.72, 7,973,731.80 and 1,949,357.88 is: 2,924,421.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,121.72 : 7,973,731.80 = 1,949,357.88 : x
  2. Step 2: Convert to fraction form
    5,315,121.72/7,973,731.80 = 1,949,357.88/x
  3. Step 3: Cross multiply
    5,315,121.72x = 7,973,731.80 × 1,949,357.88
  4. Step 4: Simplify right side
    5,315,121.72x = 15,543,656,917,336.58
  5. Step 5: Solve for x
    x = 15,543,656,917,336.58/5,315,121.72
  6. Step 6: Final answer
    x = 2,924,421.63

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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.