Home / 28,771,840.80-43,086,902.40-13,608,057.60

Finding the Fourth Proportional to 28,771,840.80, 43,086,902.40 and 13,608,057.60

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Solution

The fourth proportional to 28,771,840.80, 43,086,902.40 and 13,608,057.60 is: 20,378,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771,840.80 : 43,086,902.40 = 13,608,057.60 : x
  2. Step 2: Convert to fraction form
    28,771,840.80/43,086,902.40 = 13,608,057.60/x
  3. Step 3: Cross multiply
    28,771,840.80x = 43,086,902.40 × 13,608,057.60
  4. Step 4: Simplify right side
    28,771,840.80x = 586,329,049,664,778.25
  5. Step 5: Solve for x
    x = 586,329,049,664,778.25/28,771,840.80
  6. Step 6: Final answer
    x = 20,378,572.71

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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.