Home / 20,821,446.48-28,729,512.76-13,082,004.80

Finding the Fourth Proportional to 20,821,446.48, 28,729,512.76 and 13,082,004.80

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Solution

The fourth proportional to 20,821,446.48, 28,729,512.76 and 13,082,004.80 is: 18,050,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821,446.48 : 28,729,512.76 = 13,082,004.80 : x
  2. Step 2: Convert to fraction form
    20,821,446.48/28,729,512.76 = 13,082,004.80/x
  3. Step 3: Cross multiply
    20,821,446.48x = 28,729,512.76 × 13,082,004.80
  4. Step 4: Simplify right side
    20,821,446.48x = 375,839,623,827,981.31
  5. Step 5: Solve for x
    x = 375,839,623,827,981.31/20,821,446.48
  6. Step 6: Final answer
    x = 18,050,601.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.