Finding the Fourth Proportional to 13,386,472.70, 18,473,531.40 and 7,274,906.06
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Solution
The fourth proportional to 13,386,472.70, 18,473,531.40 and 7,274,906.06 is: 10,039,478.55
Step by Step Solution
- Step 1: Write the proportion equation
13,386,472.70 : 18,473,531.40 = 7,274,906.06 : x - Step 2: Convert to fraction form
13,386,472.70/18,473,531.40 = 7,274,906.06/x - Step 3: Cross multiply
13,386,472.70x = 18,473,531.40 × 7,274,906.06 - Step 4: Simplify right side
13,386,472.70x = 134,393,205,531,460.27 - Step 5: Solve for x
x = 134,393,205,531,460.27/13,386,472.70 - Step 6: Final answer
x = 10,039,478.55
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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.