Home / 20,857,083.06-31,287,986.58-18,713,998.02

Finding the Fourth Proportional to 20,857,083.06, 31,287,986.58 and 18,713,998.02

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Solution

The fourth proportional to 20,857,083.06, 31,287,986.58 and 18,713,998.02 is: 28,073,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,083.06 : 31,287,986.58 = 18,713,998.02 : x
  2. Step 2: Convert to fraction form
    20,857,083.06/31,287,986.58 = 18,713,998.02/x
  3. Step 3: Cross multiply
    20,857,083.06x = 31,287,986.58 × 18,713,998.02
  4. Step 4: Simplify right side
    20,857,083.06x = 585,523,318,907,906.50
  5. Step 5: Solve for x
    x = 585,523,318,907,906.50/20,857,083.06
  6. Step 6: Final answer
    x = 28,073,116.32

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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.