Home / 113,485,608.20-170,228,412.30-78,848,193.80

Finding the Fourth Proportional to 113,485,608.20, 170,228,412.30 and 78,848,193.80

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Solution

The fourth proportional to 113,485,608.20, 170,228,412.30 and 78,848,193.80 is: 118,272,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,485,608.20 : 170,228,412.30 = 78,848,193.80 : x
  2. Step 2: Convert to fraction form
    113,485,608.20/170,228,412.30 = 78,848,193.80/x
  3. Step 3: Cross multiply
    113,485,608.20x = 170,228,412.30 × 78,848,193.80
  4. Step 4: Simplify right side
    113,485,608.20x = 13,422,202,843,296,704
  5. Step 5: Solve for x
    x = 13,422,202,843,296,704/113,485,608.20
  6. Step 6: Final answer
    x = 118,272,290.70

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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.