Home / 21,611,474.21-32,365,267.92-12,361,403.78

Finding the Fourth Proportional to 21,611,474.21, 32,365,267.92 and 12,361,403.78

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Solution

The fourth proportional to 21,611,474.21, 32,365,267.92 and 12,361,403.78 is: 18,512,394.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611,474.21 : 32,365,267.92 = 12,361,403.78 : x
  2. Step 2: Convert to fraction form
    21,611,474.21/32,365,267.92 = 12,361,403.78/x
  3. Step 3: Cross multiply
    21,611,474.21x = 32,365,267.92 × 12,361,403.78
  4. Step 4: Simplify right side
    21,611,474.21x = 400,080,145,268,332.94
  5. Step 5: Solve for x
    x = 400,080,145,268,332.94/21,611,474.21
  6. Step 6: Final answer
    x = 18,512,394.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.