Home / 20,669,871.80-31,004,807.70-16,185,980.60

Finding the Fourth Proportional to 20,669,871.80, 31,004,807.70 and 16,185,980.60

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Solution

The fourth proportional to 20,669,871.80, 31,004,807.70 and 16,185,980.60 is: 24,278,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,871.80 : 31,004,807.70 = 16,185,980.60 : x
  2. Step 2: Convert to fraction form
    20,669,871.80/31,004,807.70 = 16,185,980.60/x
  3. Step 3: Cross multiply
    20,669,871.80x = 31,004,807.70 × 16,185,980.60
  4. Step 4: Simplify right side
    20,669,871.80x = 501,843,215,938,930.62
  5. Step 5: Solve for x
    x = 501,843,215,938,930.62/20,669,871.80
  6. Step 6: Final answer
    x = 24,278,970.90

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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.