Finding the Fourth Proportional to 8,179,323.90, 11,288,306.79 and 4,917,194.70
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Solution
The fourth proportional to 8,179,323.90, 11,288,306.79 and 4,917,194.70 is: 6,786,233.56
Step by Step Solution
- Step 1: Write the proportion equation
8,179,323.90 : 11,288,306.79 = 4,917,194.70 : x - Step 2: Convert to fraction form
8,179,323.90/11,288,306.79 = 4,917,194.70/x - Step 3: Cross multiply
8,179,323.90x = 11,288,306.79 × 4,917,194.70 - Step 4: Simplify right side
8,179,323.90x = 55,506,802,319,762.01 - Step 5: Solve for x
x = 55,506,802,319,762.01/8,179,323.90 - Step 6: Final answer
x = 6,786,233.56
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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.