Finding the Fourth Proportional to 7,122,909.49, 9,828,527.92 and 4,024,302.26
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Solution
The fourth proportional to 7,122,909.49, 9,828,527.92 and 4,024,302.26 is: 5,552,922.89
Step by Step Solution
- Step 1: Write the proportion equation
7,122,909.49 : 9,828,527.92 = 4,024,302.26 : x - Step 2: Convert to fraction form
7,122,909.49/9,828,527.92 = 4,024,302.26/x - Step 3: Cross multiply
7,122,909.49x = 9,828,527.92 × 4,024,302.26 - Step 4: Simplify right side
7,122,909.49x = 39,552,967,120,929.09 - Step 5: Solve for x
x = 39,552,967,120,929.09/7,122,909.49 - Step 6: Final answer
x = 5,552,922.89
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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.