Finding the Fourth Proportional to 7,980,940.25, 11,971,410.53 and 1,915,671.97
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Solution
The fourth proportional to 7,980,940.25, 11,971,410.53 and 1,915,671.97 is: 2,873,507.99
Step by Step Solution
- Step 1: Write the proportion equation
7,980,940.25 : 11,971,410.53 = 1,915,671.97 : x - Step 2: Convert to fraction form
7,980,940.25/11,971,410.53 = 1,915,671.97/x - Step 3: Cross multiply
7,980,940.25x = 11,971,410.53 × 1,915,671.97 - Step 4: Simplify right side
7,980,940.25x = 22,933,295,584,105.48 - Step 5: Solve for x
x = 22,933,295,584,105.48/7,980,940.25 - Step 6: Final answer
x = 2,873,507.99
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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.