Home / 13,617,555.17-20,422,346.81-11,215,441.85

Finding the Fourth Proportional to 13,617,555.17, 20,422,346.81 and 11,215,441.85

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Solution

The fourth proportional to 13,617,555.17, 20,422,346.81 and 11,215,441.85 is: 16,819,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617,555.17 : 20,422,346.81 = 11,215,441.85 : x
  2. Step 2: Convert to fraction form
    13,617,555.17/20,422,346.81 = 11,215,441.85/x
  3. Step 3: Cross multiply
    13,617,555.17x = 20,422,346.81 × 11,215,441.85
  4. Step 4: Simplify right side
    13,617,555.17x = 229,045,642,929,899.06
  5. Step 5: Solve for x
    x = 229,045,642,929,899.06/13,617,555.17
  6. Step 6: Final answer
    x = 16,819,879.94

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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.