Home / 21,320,539.21-29,422,343.90-11,530,983.11

Finding the Fourth Proportional to 21,320,539.21, 29,422,343.90 and 11,530,983.11

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Solution

The fourth proportional to 21,320,539.21, 29,422,343.90 and 11,530,983.11 is: 15,912,756.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,539.21 : 29,422,343.90 = 11,530,983.11 : x
  2. Step 2: Convert to fraction form
    21,320,539.21/29,422,343.90 = 11,530,983.11/x
  3. Step 3: Cross multiply
    21,320,539.21x = 29,422,343.90 × 11,530,983.11
  4. Step 4: Simplify right side
    21,320,539.21x = 339,268,550,509,856.56
  5. Step 5: Solve for x
    x = 339,268,550,509,856.56/21,320,539.21
  6. Step 6: Final answer
    x = 15,912,756.58

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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.