Home / 7,859,754-11,789,628.84-2,179,978.92

Finding the Fourth Proportional to 7,859,754, 11,789,628.84 and 2,179,978.92

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Solution

The fourth proportional to 7,859,754, 11,789,628.84 and 2,179,978.92 is: 3,269,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859,754 : 11,789,628.84 = 2,179,978.92 : x
  2. Step 2: Convert to fraction form
    7,859,754/11,789,628.84 = 2,179,978.92/x
  3. Step 3: Cross multiply
    7,859,754x = 11,789,628.84 × 2,179,978.92
  4. Step 4: Simplify right side
    7,859,754x = 25,701,142,345,824.05
  5. Step 5: Solve for x
    x = 25,701,142,345,824.05/7,859,754
  6. Step 6: Final answer
    x = 3,269,967.78

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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.