Home / 12,946,292.20-19,419,438.30-8,159,386.60

Finding the Fourth Proportional to 12,946,292.20, 19,419,438.30 and 8,159,386.60

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Solution

The fourth proportional to 12,946,292.20, 19,419,438.30 and 8,159,386.60 is: 12,239,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946,292.20 : 19,419,438.30 = 8,159,386.60 : x
  2. Step 2: Convert to fraction form
    12,946,292.20/19,419,438.30 = 8,159,386.60/x
  3. Step 3: Cross multiply
    12,946,292.20x = 19,419,438.30 × 8,159,386.60
  4. Step 4: Simplify right side
    12,946,292.20x = 158,450,704,644,546.78
  5. Step 5: Solve for x
    x = 158,450,704,644,546.78/12,946,292.20
  6. Step 6: Final answer
    x = 12,239,079.90

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Double scale
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Similar ratio
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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.