Finding the Fourth Proportional to 5,190,910.55, 7,163,875.44 and 2,868,006.96
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Solution
The fourth proportional to 5,190,910.55, 7,163,875.44 and 2,868,006.96 is: 3,958,081.04
Step by Step Solution
- Step 1: Write the proportion equation
5,190,910.55 : 7,163,875.44 = 2,868,006.96 : x - Step 2: Convert to fraction form
5,190,910.55/7,163,875.44 = 2,868,006.96/x - Step 3: Cross multiply
5,190,910.55x = 7,163,875.44 × 2,868,006.96 - Step 4: Simplify right side
5,190,910.55x = 20,546,044,622,493.06 - Step 5: Solve for x
x = 20,546,044,622,493.06/5,190,910.55 - Step 6: Final answer
x = 3,958,081.04
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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.