Home / 12,481,486.40-18,722,229.60-7,358,657.60

Finding the Fourth Proportional to 12,481,486.40, 18,722,229.60 and 7,358,657.60

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Solution

The fourth proportional to 12,481,486.40, 18,722,229.60 and 7,358,657.60 is: 11,037,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,486.40 : 18,722,229.60 = 7,358,657.60 : x
  2. Step 2: Convert to fraction form
    12,481,486.40/18,722,229.60 = 7,358,657.60/x
  3. Step 3: Cross multiply
    12,481,486.40x = 18,722,229.60 × 7,358,657.60
  4. Step 4: Simplify right side
    12,481,486.40x = 137,770,477,134,984.97
  5. Step 5: Solve for x
    x = 137,770,477,134,984.97/12,481,486.40
  6. Step 6: Final answer
    x = 11,037,986.40

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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.