Home / 20,374,342.94-28,116,796.11-11,082,129.19

Finding the Fourth Proportional to 20,374,342.94, 28,116,796.11 and 11,082,129.19

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Solution

The fourth proportional to 20,374,342.94, 28,116,796.11 and 11,082,129.19 is: 15,293,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374,342.94 : 28,116,796.11 = 11,082,129.19 : x
  2. Step 2: Convert to fraction form
    20,374,342.94/28,116,796.11 = 11,082,129.19/x
  3. Step 3: Cross multiply
    20,374,342.94x = 28,116,796.11 × 11,082,129.19
  4. Step 4: Simplify right side
    20,374,342.94x = 311,593,966,788,059.44
  5. Step 5: Solve for x
    x = 311,593,966,788,059.44/20,374,342.94
  6. Step 6: Final answer
    x = 15,293,448.61

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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.