Home / 2,105,163.98-3,158,135.53-666,209.56

Finding the Fourth Proportional to 2,105,163.98, 3,158,135.53 and 666,209.56

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Solution

The fourth proportional to 2,105,163.98, 3,158,135.53 and 666,209.56 is: 999,437.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,163.98 : 3,158,135.53 = 666,209.56 : x
  2. Step 2: Convert to fraction form
    2,105,163.98/3,158,135.53 = 666,209.56/x
  3. Step 3: Cross multiply
    2,105,163.98x = 3,158,135.53 × 666,209.56
  4. Step 4: Simplify right side
    2,105,163.98x = 2,103,980,081,861.67
  5. Step 5: Solve for x
    x = 2,103,980,081,861.67/2,105,163.98
  6. Step 6: Final answer
    x = 999,437.62

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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.