Finding the Fourth Proportional to 5,105,656.98, 7,043,069.70 and 3,268,138.23
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Solution
The fourth proportional to 5,105,656.98, 7,043,069.70 and 3,268,138.23 is: 4,508,278.84
Step by Step Solution
- Step 1: Write the proportion equation
5,105,656.98 : 7,043,069.70 = 3,268,138.23 : x - Step 2: Convert to fraction form
5,105,656.98/7,043,069.70 = 3,268,138.23/x - Step 3: Cross multiply
5,105,656.98x = 7,043,069.70 × 3,268,138.23 - Step 4: Simplify right side
5,105,656.98x = 23,017,725,343,124.63 - Step 5: Solve for x
x = 23,017,725,343,124.63/5,105,656.98 - Step 6: Final answer
x = 4,508,278.84
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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.