Home / 20,193,808.20-30,290,712.30-12,131,651.40

Finding the Fourth Proportional to 20,193,808.20, 30,290,712.30 and 12,131,651.40

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Solution

The fourth proportional to 20,193,808.20, 30,290,712.30 and 12,131,651.40 is: 18,197,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193,808.20 : 30,290,712.30 = 12,131,651.40 : x
  2. Step 2: Convert to fraction form
    20,193,808.20/30,290,712.30 = 12,131,651.40/x
  3. Step 3: Cross multiply
    20,193,808.20x = 30,290,712.30 × 12,131,651.40
  4. Step 4: Simplify right side
    20,193,808.20x = 367,476,362,281,292.25
  5. Step 5: Solve for x
    x = 367,476,362,281,292.25/20,193,808.20
  6. Step 6: Final answer
    x = 18,197,477.10

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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.