Finding the Fourth Proportional to 7,182,821.08, 9,912,502.42 and 3,919,845.96
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Solution
The fourth proportional to 7,182,821.08, 9,912,502.42 and 3,919,845.96 is: 5,409,501.66
Step by Step Solution
- Step 1: Write the proportion equation
7,182,821.08 : 9,912,502.42 = 3,919,845.96 : x - Step 2: Convert to fraction form
7,182,821.08/9,912,502.42 = 3,919,845.96/x - Step 3: Cross multiply
7,182,821.08x = 9,912,502.42 × 3,919,845.96 - Step 4: Simplify right side
7,182,821.08x = 38,855,482,564,527.22 - Step 5: Solve for x
x = 38,855,482,564,527.22/7,182,821.08 - Step 6: Final answer
x = 5,409,501.66
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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.