Home / 13,113,782.57-18,089,754.96-9,199,366.70

Finding the Fourth Proportional to 13,113,782.57, 18,089,754.96 and 9,199,366.70

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Solution

The fourth proportional to 13,113,782.57, 18,089,754.96 and 9,199,366.70 is: 12,690,029.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113,782.57 : 18,089,754.96 = 9,199,366.70 : x
  2. Step 2: Convert to fraction form
    13,113,782.57/18,089,754.96 = 9,199,366.70/x
  3. Step 3: Cross multiply
    13,113,782.57x = 18,089,754.96 × 9,199,366.70
  4. Step 4: Simplify right side
    13,113,782.57x = 166,414,289,299,735.06
  5. Step 5: Solve for x
    x = 166,414,289,299,735.06/13,113,782.57
  6. Step 6: Final answer
    x = 12,690,029.62

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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.