Home / 13,642,072.67-18,778,275.84-11,896,662.67

Finding the Fourth Proportional to 13,642,072.67, 18,778,275.84 and 11,896,662.67

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Solution

The fourth proportional to 13,642,072.67, 18,778,275.84 and 11,896,662.67 is: 16,375,723.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,072.67 : 18,778,275.84 = 11,896,662.67 : x
  2. Step 2: Convert to fraction form
    13,642,072.67/18,778,275.84 = 11,896,662.67/x
  3. Step 3: Cross multiply
    13,642,072.67x = 18,778,275.84 × 11,896,662.67
  4. Step 4: Simplify right side
    13,642,072.67x = 223,398,813,192,690.88
  5. Step 5: Solve for x
    x = 223,398,813,192,690.88/13,642,072.67
  6. Step 6: Final answer
    x = 16,375,723.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.