Home / 12,089,145.60-18,133,718.40-11,165,356.80

Finding the Fourth Proportional to 12,089,145.60, 18,133,718.40 and 11,165,356.80

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Solution

The fourth proportional to 12,089,145.60, 18,133,718.40 and 11,165,356.80 is: 16,748,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089,145.60 : 18,133,718.40 = 11,165,356.80 : x
  2. Step 2: Convert to fraction form
    12,089,145.60/18,133,718.40 = 11,165,356.80/x
  3. Step 3: Cross multiply
    12,089,145.60x = 18,133,718.40 × 11,165,356.80
  4. Step 4: Simplify right side
    12,089,145.60x = 202,469,436,046,725.12
  5. Step 5: Solve for x
    x = 202,469,436,046,725.12/12,089,145.60
  6. Step 6: Final answer
    x = 16,748,035.20

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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.