Finding the Fourth Proportional to 7,790,982.94, 11,687,730.09 and 2,399,631.58
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Solution
The fourth proportional to 7,790,982.94, 11,687,730.09 and 2,399,631.58 is: 3,599,834.12
Step by Step Solution
- Step 1: Write the proportion equation
7,790,982.94 : 11,687,730.09 = 2,399,631.58 : x - Step 2: Convert to fraction form
7,790,982.94/11,687,730.09 = 2,399,631.58/x - Step 3: Cross multiply
7,790,982.94x = 11,687,730.09 × 2,399,631.58 - Step 4: Simplify right side
7,790,982.94x = 28,046,246,222,480.24 - Step 5: Solve for x
x = 28,046,246,222,480.24/7,790,982.94 - Step 6: Final answer
x = 3,599,834.12
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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.