Home / 7,211,147.60-9,951,385.80-3,991,883.60

Finding the Fourth Proportional to 7,211,147.60, 9,951,385.80 and 3,991,883.60

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Solution

The fourth proportional to 7,211,147.60, 9,951,385.80 and 3,991,883.60 is: 5,508,800.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211,147.60 : 9,951,385.80 = 3,991,883.60 : x
  2. Step 2: Convert to fraction form
    7,211,147.60/9,951,385.80 = 3,991,883.60/x
  3. Step 3: Cross multiply
    7,211,147.60x = 9,951,385.80 × 3,991,883.60
  4. Step 4: Simplify right side
    7,211,147.60x = 39,724,773,772,292.88
  5. Step 5: Solve for x
    x = 39,724,773,772,292.88/7,211,147.60
  6. Step 6: Final answer
    x = 5,508,800.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.