Home / 18,946,807.80-28,420,211.70-13,273,438.20

Finding the Fourth Proportional to 18,946,807.80, 28,420,211.70 and 13,273,438.20

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Solution

The fourth proportional to 18,946,807.80, 28,420,211.70 and 13,273,438.20 is: 19,910,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946,807.80 : 28,420,211.70 = 13,273,438.20 : x
  2. Step 2: Convert to fraction form
    18,946,807.80/28,420,211.70 = 13,273,438.20/x
  3. Step 3: Cross multiply
    18,946,807.80x = 28,420,211.70 × 13,273,438.20
  4. Step 4: Simplify right side
    18,946,807.80x = 377,233,923,630,866.94
  5. Step 5: Solve for x
    x = 377,233,923,630,866.94/18,946,807.80
  6. Step 6: Final answer
    x = 19,910,157.30

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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.