Home / 13,867,118.97-20,783,642.22-7,789,074.18

Finding the Fourth Proportional to 13,867,118.97, 20,783,642.22 and 7,789,074.18

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Solution

The fourth proportional to 13,867,118.97, 20,783,642.22 and 7,789,074.18 is: 11,674,042.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867,118.97 : 20,783,642.22 = 7,789,074.18 : x
  2. Step 2: Convert to fraction form
    13,867,118.97/20,783,642.22 = 7,789,074.18/x
  3. Step 3: Cross multiply
    13,867,118.97x = 20,783,642.22 × 7,789,074.18
  4. Step 4: Simplify right side
    13,867,118.97x = 161,885,330,982,159.88
  5. Step 5: Solve for x
    x = 161,885,330,982,159.88/13,867,118.97
  6. Step 6: Final answer
    x = 11,674,042.12

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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.