Home / 13,215,657.28-18,237,887.82-7,414,858.48

Finding the Fourth Proportional to 13,215,657.28, 18,237,887.82 and 7,414,858.48

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Solution

The fourth proportional to 13,215,657.28, 18,237,887.82 and 7,414,858.48 is: 10,232,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,657.28 : 18,237,887.82 = 7,414,858.48 : x
  2. Step 2: Convert to fraction form
    13,215,657.28/18,237,887.82 = 7,414,858.48/x
  3. Step 3: Cross multiply
    13,215,657.28x = 18,237,887.82 × 7,414,858.48
  4. Step 4: Simplify right side
    13,215,657.28x = 135,231,357,159,415.72
  5. Step 5: Solve for x
    x = 135,231,357,159,415.72/13,215,657.28
  6. Step 6: Final answer
    x = 10,232,662.23

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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.