Home / 21,405,114.66-29,539,138.53-11,615,560.86

Finding the Fourth Proportional to 21,405,114.66, 29,539,138.53 and 11,615,560.86

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Solution

The fourth proportional to 21,405,114.66, 29,539,138.53 and 11,615,560.86 is: 16,029,517.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,114.66 : 29,539,138.53 = 11,615,560.86 : x
  2. Step 2: Convert to fraction form
    21,405,114.66/29,539,138.53 = 11,615,560.86/x
  3. Step 3: Cross multiply
    21,405,114.66x = 29,539,138.53 × 11,615,560.86
  4. Step 4: Simplify right side
    21,405,114.66x = 343,113,661,347,185.94
  5. Step 5: Solve for x
    x = 343,113,661,347,185.94/21,405,114.66
  6. Step 6: Final answer
    x = 16,029,517.56

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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.