Home / 13,505,611.62-18,639,518.94-7,703,063.22

Finding the Fourth Proportional to 13,505,611.62, 18,639,518.94 and 7,703,063.22

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Solution

The fourth proportional to 13,505,611.62, 18,639,518.94 and 7,703,063.22 is: 10,631,239.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505,611.62 : 18,639,518.94 = 7,703,063.22 : x
  2. Step 2: Convert to fraction form
    13,505,611.62/18,639,518.94 = 7,703,063.22/x
  3. Step 3: Cross multiply
    13,505,611.62x = 18,639,518.94 × 7,703,063.22
  4. Step 4: Simplify right side
    13,505,611.62x = 143,581,392,785,207.41
  5. Step 5: Solve for x
    x = 143,581,392,785,207.41/13,505,611.62
  6. Step 6: Final answer
    x = 10,631,239.58

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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.