Home / 18,782,612.80-28,173,919.20-9,216,674.80

Finding the Fourth Proportional to 18,782,612.80, 28,173,919.20 and 9,216,674.80

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Solution

The fourth proportional to 18,782,612.80, 28,173,919.20 and 9,216,674.80 is: 13,825,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782,612.80 : 28,173,919.20 = 9,216,674.80 : x
  2. Step 2: Convert to fraction form
    18,782,612.80/28,173,919.20 = 9,216,674.80/x
  3. Step 3: Cross multiply
    18,782,612.80x = 28,173,919.20 × 9,216,674.80
  4. Step 4: Simplify right side
    18,782,612.80x = 259,669,851,107,876.19
  5. Step 5: Solve for x
    x = 259,669,851,107,876.19/18,782,612.80
  6. Step 6: Final answer
    x = 13,825,012.20

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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.