Home / 20,956,430.70-28,904,285.43-18,504,716.22

Finding the Fourth Proportional to 20,956,430.70, 28,904,285.43 and 18,504,716.22

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Solution

The fourth proportional to 20,956,430.70, 28,904,285.43 and 18,504,716.22 is: 25,522,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,430.70 : 28,904,285.43 = 18,504,716.22 : x
  2. Step 2: Convert to fraction form
    20,956,430.70/28,904,285.43 = 18,504,716.22/x
  3. Step 3: Cross multiply
    20,956,430.70x = 28,904,285.43 × 18,504,716.22
  4. Step 4: Simplify right side
    20,956,430.70x = 534,865,599,424,030.62
  5. Step 5: Solve for x
    x = 534,865,599,424,030.62/20,956,430.70
  6. Step 6: Final answer
    x = 25,522,743.21

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Why These Related Problems?

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