Home / 20,747,131.30-28,604,427.54-17,012,201.47

Finding the Fourth Proportional to 20,747,131.30, 28,604,427.54 and 17,012,201.47

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Solution

The fourth proportional to 20,747,131.30, 28,604,427.54 and 17,012,201.47 is: 23,455,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,131.30 : 28,604,427.54 = 17,012,201.47 : x
  2. Step 2: Convert to fraction form
    20,747,131.30/28,604,427.54 = 17,012,201.47/x
  3. Step 3: Cross multiply
    20,747,131.30x = 28,604,427.54 × 17,012,201.47
  4. Step 4: Simplify right side
    20,747,131.30x = 486,624,284,244,496.44
  5. Step 5: Solve for x
    x = 486,624,284,244,496.44/20,747,131.30
  6. Step 6: Final answer
    x = 23,455,015.40

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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.