Home / 21,777,193.78-30,035,741.44-13,522,143.58

Finding the Fourth Proportional to 21,777,193.78, 30,035,741.44 and 13,522,143.58

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Solution

The fourth proportional to 21,777,193.78, 30,035,741.44 and 13,522,143.58 is: 18,650,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,777,193.78 : 30,035,741.44 = 13,522,143.58 : x
  2. Step 2: Convert to fraction form
    21,777,193.78/30,035,741.44 = 13,522,143.58/x
  3. Step 3: Cross multiply
    21,777,193.78x = 30,035,741.44 × 13,522,143.58
  4. Step 4: Simplify right side
    21,777,193.78x = 406,147,608,283,436
  5. Step 5: Solve for x
    x = 406,147,608,283,436/21,777,193.78
  6. Step 6: Final answer
    x = 18,650,135.20

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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.