Finding the Fourth Proportional to 6,690,813.33, 9,233,142.66 and 3,937,662.75
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Solution
The fourth proportional to 6,690,813.33, 9,233,142.66 and 3,937,662.75 is: 5,433,868.82
Step by Step Solution
- Step 1: Write the proportion equation
6,690,813.33 : 9,233,142.66 = 3,937,662.75 : x - Step 2: Convert to fraction form
6,690,813.33/9,233,142.66 = 3,937,662.75/x - Step 3: Cross multiply
6,690,813.33x = 9,233,142.66 × 3,937,662.75 - Step 4: Simplify right side
6,690,813.33x = 36,357,001,917,717.91 - Step 5: Solve for x
x = 36,357,001,917,717.91/6,690,813.33 - Step 6: Final answer
x = 5,433,868.82
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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.