Home / 21,405,333.86-29,539,380.94-12,238,168.58

Finding the Fourth Proportional to 21,405,333.86, 29,539,380.94 and 12,238,168.58

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Solution

The fourth proportional to 21,405,333.86, 29,539,380.94 and 12,238,168.58 is: 16,888,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,333.86 : 29,539,380.94 = 12,238,168.58 : x
  2. Step 2: Convert to fraction form
    21,405,333.86/29,539,380.94 = 12,238,168.58/x
  3. Step 3: Cross multiply
    21,405,333.86x = 29,539,380.94 × 12,238,168.58
  4. Step 4: Simplify right side
    21,405,333.86x = 361,507,923,692,558.88
  5. Step 5: Solve for x
    x = 361,507,923,692,558.88/21,405,333.86
  6. Step 6: Final answer
    x = 16,888,684.20

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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.