Home / 20,669,930.80-31,004,896.20-16,186,039.60

Finding the Fourth Proportional to 20,669,930.80, 31,004,896.20 and 16,186,039.60

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Solution

The fourth proportional to 20,669,930.80, 31,004,896.20 and 16,186,039.60 is: 24,279,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,930.80 : 31,004,896.20 = 16,186,039.60 : x
  2. Step 2: Convert to fraction form
    20,669,930.80/31,004,896.20 = 16,186,039.60/x
  3. Step 3: Cross multiply
    20,669,930.80x = 31,004,896.20 × 16,186,039.60
  4. Step 4: Simplify right side
    20,669,930.80x = 501,846,477,687,089.50
  5. Step 5: Solve for x
    x = 501,846,477,687,089.50/20,669,930.80
  6. Step 6: Final answer
    x = 24,279,059.40

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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.