Home / 12,391,473.15-18,579,992.49-4,809,581.55

Finding the Fourth Proportional to 12,391,473.15, 18,579,992.49 and 4,809,581.55

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Solution

The fourth proportional to 12,391,473.15, 18,579,992.49 and 4,809,581.55 is: 7,211,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391,473.15 : 18,579,992.49 = 4,809,581.55 : x
  2. Step 2: Convert to fraction form
    12,391,473.15/18,579,992.49 = 4,809,581.55/x
  3. Step 3: Cross multiply
    12,391,473.15x = 18,579,992.49 × 4,809,581.55
  4. Step 4: Simplify right side
    12,391,473.15x = 89,361,989,079,042.55
  5. Step 5: Solve for x
    x = 89,361,989,079,042.55/12,391,473.15
  6. Step 6: Final answer
    x = 7,211,571.05

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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.