Home / 20,823,817.77-28,732,111.97-13,385,365.97

Finding the Fourth Proportional to 20,823,817.77, 28,732,111.97 and 13,385,365.97

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Solution

The fourth proportional to 20,823,817.77, 28,732,111.97 and 13,385,365.97 is: 18,468,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823,817.77 : 28,732,111.97 = 13,385,365.97 : x
  2. Step 2: Convert to fraction form
    20,823,817.77/28,732,111.97 = 13,385,365.97/x
  3. Step 3: Cross multiply
    20,823,817.77x = 28,732,111.97 × 13,385,365.97
  4. Step 4: Simplify right side
    20,823,817.77x = 384,589,833,598,880.25
  5. Step 5: Solve for x
    x = 384,589,833,598,880.25/20,823,817.77
  6. Step 6: Final answer
    x = 18,468,747.56

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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.