Home / 8,809,505.20-13,211,147.40-3,129,914.80

Finding the Fourth Proportional to 8,809,505.20, 13,211,147.40 and 3,129,914.80

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Solution

The fourth proportional to 8,809,505.20, 13,211,147.40 and 3,129,914.80 is: 4,693,767.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809,505.20 : 13,211,147.40 = 3,129,914.80 : x
  2. Step 2: Convert to fraction form
    8,809,505.20/13,211,147.40 = 3,129,914.80/x
  3. Step 3: Cross multiply
    8,809,505.20x = 13,211,147.40 × 3,129,914.80
  4. Step 4: Simplify right side
    8,809,505.20x = 41,349,765,772,241.52
  5. Step 5: Solve for x
    x = 41,349,765,772,241.52/8,809,505.20
  6. Step 6: Final answer
    x = 4,693,767.11

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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.