Home / 20,862,907.52-31,288,290.24-8,080,561.28

Finding the Fourth Proportional to 20,862,907.52, 31,288,290.24 and 8,080,561.28

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Solution

The fourth proportional to 20,862,907.52, 31,288,290.24 and 8,080,561.28 is: 12,118,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,907.52 : 31,288,290.24 = 8,080,561.28 : x
  2. Step 2: Convert to fraction form
    20,862,907.52/31,288,290.24 = 8,080,561.28/x
  3. Step 3: Cross multiply
    20,862,907.52x = 31,288,290.24 × 8,080,561.28
  4. Step 4: Simplify right side
    20,862,907.52x = 252,826,946,630,745.91
  5. Step 5: Solve for x
    x = 252,826,946,630,745.91/20,862,907.52
  6. Step 6: Final answer
    x = 12,118,490.50

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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.