Finding the Fourth Proportional to 74,192,755.09, 102,385,674.04 and 42,402,394.31
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Solution
The fourth proportional to 74,192,755.09, 102,385,674.04 and 42,402,394.31 is: 58,515,116.70
Step by Step Solution
- Step 1: Write the proportion equation
74,192,755.09 : 102,385,674.04 = 42,402,394.31 : x - Step 2: Convert to fraction form
74,192,755.09/102,385,674.04 = 42,402,394.31/x - Step 3: Cross multiply
74,192,755.09x = 102,385,674.04 × 42,402,394.31 - Step 4: Simplify right side
74,192,755.09x = 4,341,397,722,339,211 - Step 5: Solve for x
x = 4,341,397,722,339,211/74,192,755.09 - Step 6: Final answer
x = 58,515,116.70
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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.