Home / 12,451,448.57-18,638,865.78-8,124,181.12

Finding the Fourth Proportional to 12,451,448.57, 18,638,865.78 and 8,124,181.12

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Solution

The fourth proportional to 12,451,448.57, 18,638,865.78 and 8,124,181.12 is: 12,161,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451,448.57 : 18,638,865.78 = 8,124,181.12 : x
  2. Step 2: Convert to fraction form
    12,451,448.57/18,638,865.78 = 8,124,181.12/x
  3. Step 3: Cross multiply
    12,451,448.57x = 18,638,865.78 × 8,124,181.12
  4. Step 4: Simplify right side
    12,451,448.57x = 151,425,521,374,895.75
  5. Step 5: Solve for x
    x = 151,425,521,374,895.75/12,451,448.57
  6. Step 6: Final answer
    x = 12,161,277.50

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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.