Home / 13,943,914.40-20,915,871.60-8,487,786.80

Finding the Fourth Proportional to 13,943,914.40, 20,915,871.60 and 8,487,786.80

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Solution

The fourth proportional to 13,943,914.40, 20,915,871.60 and 8,487,786.80 is: 12,731,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943,914.40 : 20,915,871.60 = 8,487,786.80 : x
  2. Step 2: Convert to fraction form
    13,943,914.40/20,915,871.60 = 8,487,786.80/x
  3. Step 3: Cross multiply
    13,943,914.40x = 20,915,871.60 × 8,487,786.80
  4. Step 4: Simplify right side
    13,943,914.40x = 177,529,458,876,974.91
  5. Step 5: Solve for x
    x = 177,529,458,876,974.91/13,943,914.40
  6. Step 6: Final answer
    x = 12,731,680.20

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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.