Home / 20,193,777.20-30,290,665.80-12,131,620.40

Finding the Fourth Proportional to 20,193,777.20, 30,290,665.80 and 12,131,620.40

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Solution

The fourth proportional to 20,193,777.20, 30,290,665.80 and 12,131,620.40 is: 18,197,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193,777.20 : 30,290,665.80 = 12,131,620.40 : x
  2. Step 2: Convert to fraction form
    20,193,777.20/30,290,665.80 = 12,131,620.40/x
  3. Step 3: Cross multiply
    20,193,777.20x = 30,290,665.80 × 12,131,620.40
  4. Step 4: Simplify right side
    20,193,777.20x = 367,474,859,148,862.31
  5. Step 5: Solve for x
    x = 367,474,859,148,862.31/20,193,777.20
  6. Step 6: Final answer
    x = 18,197,430.60

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1.5x scale

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.