Home / 71,530,180.96-107,296,277.48-20,412,205.24

Finding the Fourth Proportional to 71,530,180.96, 107,296,277.48 and 20,412,205.24

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Solution

The fourth proportional to 71,530,180.96, 107,296,277.48 and 20,412,205.24 is: 30,618,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,530,180.96 : 107,296,277.48 = 20,412,205.24 : x
  2. Step 2: Convert to fraction form
    71,530,180.96/107,296,277.48 = 20,412,205.24/x
  3. Step 3: Cross multiply
    71,530,180.96x = 107,296,277.48 × 20,412,205.24
  4. Step 4: Simplify right side
    71,530,180.96x = 2,190,153,637,409,750
  5. Step 5: Solve for x
    x = 2,190,153,637,409,750/71,530,180.96
  6. Step 6: Final answer
    x = 30,618,594.95

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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.