Home / 12,456,098.70-18,684,148.05-11,180,640.30

Finding the Fourth Proportional to 12,456,098.70, 18,684,148.05 and 11,180,640.30

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Solution

The fourth proportional to 12,456,098.70, 18,684,148.05 and 11,180,640.30 is: 16,770,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,098.70 : 18,684,148.05 = 11,180,640.30 : x
  2. Step 2: Convert to fraction form
    12,456,098.70/18,684,148.05 = 11,180,640.30/x
  3. Step 3: Cross multiply
    12,456,098.70x = 18,684,148.05 × 11,180,640.30
  4. Step 4: Simplify right side
    12,456,098.70x = 208,900,738,658,996.44
  5. Step 5: Solve for x
    x = 208,900,738,658,996.44/12,456,098.70
  6. Step 6: Final answer
    x = 16,770,960.45

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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.