Home / 11,920,638.66-16,456,313.21-7,998,991.67

Finding the Fourth Proportional to 11,920,638.66, 16,456,313.21 and 7,998,991.67

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Solution

The fourth proportional to 11,920,638.66, 16,456,313.21 and 7,998,991.67 is: 11,042,521.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920,638.66 : 16,456,313.21 = 7,998,991.67 : x
  2. Step 2: Convert to fraction form
    11,920,638.66/16,456,313.21 = 7,998,991.67/x
  3. Step 3: Cross multiply
    11,920,638.66x = 16,456,313.21 × 7,998,991.67
  4. Step 4: Simplify right side
    11,920,638.66x = 131,633,912,163,424.44
  5. Step 5: Solve for x
    x = 131,633,912,163,424.44/11,920,638.66
  6. Step 6: Final answer
    x = 11,042,521.79

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1.5x scale

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.