Finding the Fourth Proportional to 4,869,143.93, 6,718,211.39 and 3,148,193.63
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Solution
The fourth proportional to 4,869,143.93, 6,718,211.39 and 3,148,193.63 is: 4,343,726.65
Step by Step Solution
- Step 1: Write the proportion equation
4,869,143.93 : 6,718,211.39 = 3,148,193.63 : x - Step 2: Convert to fraction form
4,869,143.93/6,718,211.39 = 3,148,193.63/x - Step 3: Cross multiply
4,869,143.93x = 6,718,211.39 × 3,148,193.63 - Step 4: Simplify right side
4,869,143.93x = 21,150,230,253,659.42 - Step 5: Solve for x
x = 21,150,230,253,659.42/4,869,143.93 - Step 6: Final answer
x = 4,343,726.65
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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.