Finding the Fourth Proportional to 1,027,715,135.57, 1,418,208,910.35 and 557,806,367.45
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Solution
The fourth proportional to 1,027,715,135.57, 1,418,208,910.35 and 557,806,367.45 is: 769,752,174.68
Step by Step Solution
- Step 1: Write the proportion equation
1,027,715,135.57 : 1,418,208,910.35 = 557,806,367.45 : x - Step 2: Convert to fraction form
1,027,715,135.57/1,418,208,910.35 = 557,806,367.45/x - Step 3: Cross multiply
1,027,715,135.57x = 1,418,208,910.35 × 557,806,367.45 - Step 4: Simplify right side
1,027,715,135.57x = 791,085,960,557,676,160 - Step 5: Solve for x
x = 791,085,960,557,676,160/1,027,715,135.57 - Step 6: Final answer
x = 769,752,174.68
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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.