Home / 12,628,566.70-18,914,856.45-7,589,718.70

Finding the Fourth Proportional to 12,628,566.70, 18,914,856.45 and 7,589,718.70

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Solution

The fourth proportional to 12,628,566.70, 18,914,856.45 and 7,589,718.70 is: 11,367,754.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628,566.70 : 18,914,856.45 = 7,589,718.70 : x
  2. Step 2: Convert to fraction form
    12,628,566.70/18,914,856.45 = 7,589,718.70/x
  3. Step 3: Cross multiply
    12,628,566.70x = 18,914,856.45 × 7,589,718.70
  4. Step 4: Simplify right side
    12,628,566.70x = 143,558,439,706,380.62
  5. Step 5: Solve for x
    x = 143,558,439,706,380.62/12,628,566.70
  6. Step 6: Final answer
    x = 11,367,754.01

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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.