Home / 12,381,059.63-18,561,821.94-7,822,499.90

Finding the Fourth Proportional to 12,381,059.63, 18,561,821.94 and 7,822,499.90

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Solution

The fourth proportional to 12,381,059.63, 18,561,821.94 and 7,822,499.90 is: 11,727,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,059.63 : 18,561,821.94 = 7,822,499.90 : x
  2. Step 2: Convert to fraction form
    12,381,059.63/18,561,821.94 = 7,822,499.90/x
  3. Step 3: Cross multiply
    12,381,059.63x = 18,561,821.94 × 7,822,499.90
  4. Step 4: Simplify right side
    12,381,059.63x = 145,199,850,269,467.81
  5. Step 5: Solve for x
    x = 145,199,850,269,467.81/12,381,059.63
  6. Step 6: Final answer
    x = 11,727,578.62

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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.