Home / 12,884,856.57-19,327,284.84-3,909,408.57

Finding the Fourth Proportional to 12,884,856.57, 19,327,284.84 and 3,909,408.57

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Solution

The fourth proportional to 12,884,856.57, 19,327,284.84 and 3,909,408.57 is: 5,864,112.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884,856.57 : 19,327,284.84 = 3,909,408.57 : x
  2. Step 2: Convert to fraction form
    12,884,856.57/19,327,284.84 = 3,909,408.57/x
  3. Step 3: Cross multiply
    12,884,856.57x = 19,327,284.84 × 3,909,408.57
  4. Step 4: Simplify right side
    12,884,856.57x = 75,558,252,988,327.08
  5. Step 5: Solve for x
    x = 75,558,252,988,327.08/12,884,856.57
  6. Step 6: Final answer
    x = 5,864,112.85

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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.