Home / 20,166,136.40-30,261,014.40-7,387,932.80

Finding the Fourth Proportional to 20,166,136.40, 30,261,014.40 and 7,387,932.80

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Solution

The fourth proportional to 20,166,136.40, 30,261,014.40 and 7,387,932.80 is: 11,086,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166,136.40 : 30,261,014.40 = 7,387,932.80 : x
  2. Step 2: Convert to fraction form
    20,166,136.40/30,261,014.40 = 7,387,932.80/x
  3. Step 3: Cross multiply
    20,166,136.40x = 30,261,014.40 × 7,387,932.80
  4. Step 4: Simplify right side
    20,166,136.40x = 223,566,340,847,032.31
  5. Step 5: Solve for x
    x = 223,566,340,847,032.31/20,166,136.40
  6. Step 6: Final answer
    x = 11,086,225.76

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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.