Finding the Fourth Proportional to 7,192,082.43, 9,924,948.63 and 3,928,813.29
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Solution
The fourth proportional to 7,192,082.43, 9,924,948.63 and 3,928,813.29 is: 5,421,693.99
Step by Step Solution
- Step 1: Write the proportion equation
7,192,082.43 : 9,924,948.63 = 3,928,813.29 : x - Step 2: Convert to fraction form
7,192,082.43/9,924,948.63 = 3,928,813.29/x - Step 3: Cross multiply
7,192,082.43x = 9,924,948.63 × 3,928,813.29 - Step 4: Simplify right side
7,192,082.43x = 38,993,270,080,111.30 - Step 5: Solve for x
x = 38,993,270,080,111.30/7,192,082.43 - Step 6: Final answer
x = 5,421,693.99
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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.