Home / 13,945,145.60-20,889,724.80-7,954,515.20

Finding the Fourth Proportional to 13,945,145.60, 20,889,724.80 and 7,954,515.20

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Solution

The fourth proportional to 13,945,145.60, 20,889,724.80 and 7,954,515.20 is: 11,915,804.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945,145.60 : 20,889,724.80 = 7,954,515.20 : x
  2. Step 2: Convert to fraction form
    13,945,145.60/20,889,724.80 = 7,954,515.20/x
  3. Step 3: Cross multiply
    13,945,145.60x = 20,889,724.80 × 7,954,515.20
  4. Step 4: Simplify right side
    13,945,145.60x = 166,167,633,445,416.97
  5. Step 5: Solve for x
    x = 166,167,633,445,416.97/13,945,145.60
  6. Step 6: Final answer
    x = 11,915,804.84

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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.