Home / 13,215,656.28-18,237,886.44-7,414,857.48

Finding the Fourth Proportional to 13,215,656.28, 18,237,886.44 and 7,414,857.48

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Solution

The fourth proportional to 13,215,656.28, 18,237,886.44 and 7,414,857.48 is: 10,232,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,656.28 : 18,237,886.44 = 7,414,857.48 : x
  2. Step 2: Convert to fraction form
    13,215,656.28/18,237,886.44 = 7,414,857.48/x
  3. Step 3: Cross multiply
    13,215,656.28x = 18,237,886.44 × 7,414,857.48
  4. Step 4: Simplify right side
    13,215,656.28x = 135,231,328,689,024.59
  5. Step 5: Solve for x
    x = 135,231,328,689,024.59/13,215,656.28
  6. Step 6: Final answer
    x = 10,232,660.85

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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.