Finding the Fourth Proportional to 986,397,861.86, 1,361,218,201.10 and 534,264,580.80
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Solution
The fourth proportional to 986,397,861.86, 1,361,218,201.10 and 534,264,580.80 is: 737,279,245.74
Step by Step Solution
- Step 1: Write the proportion equation
986,397,861.86 : 1,361,218,201.10 = 534,264,580.80 : x - Step 2: Convert to fraction form
986,397,861.86/1,361,218,201.10 = 534,264,580.80/x - Step 3: Cross multiply
986,397,861.86x = 1,361,218,201.10 × 534,264,580.80 - Step 4: Simplify right side
986,397,861.86x = 727,250,671,588,021,504 - Step 5: Solve for x
x = 727,250,671,588,021,504/986,397,861.86 - Step 6: Final answer
x = 737,279,245.74
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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.