Home / 20,631,629.20-30,947,443.80-18,647,582.80

Finding the Fourth Proportional to 20,631,629.20, 30,947,443.80 and 18,647,582.80

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Solution

The fourth proportional to 20,631,629.20, 30,947,443.80 and 18,647,582.80 is: 27,971,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,629.20 : 30,947,443.80 = 18,647,582.80 : x
  2. Step 2: Convert to fraction form
    20,631,629.20/30,947,443.80 = 18,647,582.80/x
  3. Step 3: Cross multiply
    20,631,629.20x = 30,947,443.80 × 18,647,582.80
  4. Step 4: Simplify right side
    20,631,629.20x = 577,095,020,708,846.62
  5. Step 5: Solve for x
    x = 577,095,020,708,846.62/20,631,629.20
  6. Step 6: Final answer
    x = 27,971,374.20

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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.