Finding the Fourth Proportional to 7,233,342.12, 9,982,138.68 and 3,970,462.05
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Solution
The fourth proportional to 7,233,342.12, 9,982,138.68 and 3,970,462.05 is: 5,479,307.10
Step by Step Solution
- Step 1: Write the proportion equation
7,233,342.12 : 9,982,138.68 = 3,970,462.05 : x - Step 2: Convert to fraction form
7,233,342.12/9,982,138.68 = 3,970,462.05/x - Step 3: Cross multiply
7,233,342.12x = 9,982,138.68 × 3,970,462.05 - Step 4: Simplify right side
7,233,342.12x = 39,633,702,806,777.09 - Step 5: Solve for x
x = 39,633,702,806,777.09/7,233,342.12 - Step 6: Final answer
x = 5,479,307.10
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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.