Home / 20,669,855.80-31,004,783.70-16,185,964.60

Finding the Fourth Proportional to 20,669,855.80, 31,004,783.70 and 16,185,964.60

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Solution

The fourth proportional to 20,669,855.80, 31,004,783.70 and 16,185,964.60 is: 24,278,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,855.80 : 31,004,783.70 = 16,185,964.60 : x
  2. Step 2: Convert to fraction form
    20,669,855.80/31,004,783.70 = 16,185,964.60/x
  3. Step 3: Cross multiply
    20,669,855.80x = 31,004,783.70 × 16,185,964.60
  4. Step 4: Simplify right side
    20,669,855.80x = 501,842,331,398,857
  5. Step 5: Solve for x
    x = 501,842,331,398,857/20,669,855.80
  6. Step 6: Final answer
    x = 24,278,946.90

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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.