Home / 12,636,000.80-18,954,001.20-4,117,198.40

Finding the Fourth Proportional to 12,636,000.80, 18,954,001.20 and 4,117,198.40

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Solution

The fourth proportional to 12,636,000.80, 18,954,001.20 and 4,117,198.40 is: 6,175,797.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636,000.80 : 18,954,001.20 = 4,117,198.40 : x
  2. Step 2: Convert to fraction form
    12,636,000.80/18,954,001.20 = 4,117,198.40/x
  3. Step 3: Cross multiply
    12,636,000.80x = 18,954,001.20 × 4,117,198.40
  4. Step 4: Simplify right side
    12,636,000.80x = 78,037,383,414,238.08
  5. Step 5: Solve for x
    x = 78,037,383,414,238.08/12,636,000.80
  6. Step 6: Final answer
    x = 6,175,797.60

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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.