Home / 12,247,112.88-18,374,802-5,422,754.40

Finding the Fourth Proportional to 12,247,112.88, 18,374,802 and 5,422,754.40

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Solution

The fourth proportional to 12,247,112.88, 18,374,802 and 5,422,754.40 is: 8,135,961.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,247,112.88 : 18,374,802 = 5,422,754.40 : x
  2. Step 2: Convert to fraction form
    12,247,112.88/18,374,802 = 5,422,754.40/x
  3. Step 3: Cross multiply
    12,247,112.88x = 18,374,802 × 5,422,754.40
  4. Step 4: Simplify right side
    12,247,112.88x = 99,642,038,394,628.81
  5. Step 5: Solve for x
    x = 99,642,038,394,628.81/12,247,112.88
  6. Step 6: Final answer
    x = 8,135,961.46

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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.