Home / 12,481,856.80-18,722,785.20-10,466,317.60

Finding the Fourth Proportional to 12,481,856.80, 18,722,785.20 and 10,466,317.60

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Solution

The fourth proportional to 12,481,856.80, 18,722,785.20 and 10,466,317.60 is: 15,699,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,856.80 : 18,722,785.20 = 10,466,317.60 : x
  2. Step 2: Convert to fraction form
    12,481,856.80/18,722,785.20 = 10,466,317.60/x
  3. Step 3: Cross multiply
    12,481,856.80x = 18,722,785.20 × 10,466,317.60
  4. Step 4: Simplify right side
    12,481,856.80x = 195,958,616,259,779.50
  5. Step 5: Solve for x
    x = 195,958,616,259,779.50/12,481,856.80
  6. Step 6: Final answer
    x = 15,699,476.40

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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.