Finding the Fourth Proportional to 5,377,279.05, 7,420,551.28 and 2,929,910.36
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Solution
The fourth proportional to 5,377,279.05, 7,420,551.28 and 2,929,910.36 is: 4,043,225.17
Step by Step Solution
- Step 1: Write the proportion equation
5,377,279.05 : 7,420,551.28 = 2,929,910.36 : x - Step 2: Convert to fraction form
5,377,279.05/7,420,551.28 = 2,929,910.36/x - Step 3: Cross multiply
5,377,279.05x = 7,420,551.28 × 2,929,910.36 - Step 4: Simplify right side
5,377,279.05x = 21,741,550,027,755.73 - Step 5: Solve for x
x = 21,741,550,027,755.73/5,377,279.05 - Step 6: Final answer
x = 4,043,225.17
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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.