Home / 5,190,997.05-7,782,280.12-2,160,631.21

Finding the Fourth Proportional to 5,190,997.05, 7,782,280.12 and 2,160,631.21

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Solution

The fourth proportional to 5,190,997.05, 7,782,280.12 and 2,160,631.21 is: 3,239,192.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190,997.05 : 7,782,280.12 = 2,160,631.21 : x
  2. Step 2: Convert to fraction form
    5,190,997.05/7,782,280.12 = 2,160,631.21/x
  3. Step 3: Cross multiply
    5,190,997.05x = 7,782,280.12 × 2,160,631.21
  4. Step 4: Simplify right side
    5,190,997.05x = 16,814,637,297,917.86
  5. Step 5: Solve for x
    x = 16,814,637,297,917.86/5,190,997.05
  6. Step 6: Final answer
    x = 3,239,192.23

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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.