Home / 20,796,136.66-31,197,042.42-8,662,762.59

Finding the Fourth Proportional to 20,796,136.66, 31,197,042.42 and 8,662,762.59

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Solution

The fourth proportional to 20,796,136.66, 31,197,042.42 and 8,662,762.59 is: 12,995,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,136.66 : 31,197,042.42 = 8,662,762.59 : x
  2. Step 2: Convert to fraction form
    20,796,136.66/31,197,042.42 = 8,662,762.59/x
  3. Step 3: Cross multiply
    20,796,136.66x = 31,197,042.42 × 8,662,762.59
  4. Step 4: Simplify right side
    20,796,136.66x = 270,252,571,994,619.09
  5. Step 5: Solve for x
    x = 270,252,571,994,619.09/20,796,136.66
  6. Step 6: Final answer
    x = 12,995,325.83

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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.