Home / 12,231,990.40-18,347,985.60-11,014,268.80

Finding the Fourth Proportional to 12,231,990.40, 18,347,985.60 and 11,014,268.80

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Solution

The fourth proportional to 12,231,990.40, 18,347,985.60 and 11,014,268.80 is: 16,521,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231,990.40 : 18,347,985.60 = 11,014,268.80 : x
  2. Step 2: Convert to fraction form
    12,231,990.40/18,347,985.60 = 11,014,268.80/x
  3. Step 3: Cross multiply
    12,231,990.40x = 18,347,985.60 × 11,014,268.80
  4. Step 4: Simplify right side
    12,231,990.40x = 202,089,645,336,929.31
  5. Step 5: Solve for x
    x = 202,089,645,336,929.31/12,231,990.40
  6. Step 6: Final answer
    x = 16,521,403.20

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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.