Finding the Fourth Proportional to 129,085,377.12, 193,668,997.86 and 46,085,348.97
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Solution
The fourth proportional to 129,085,377.12, 193,668,997.86 and 46,085,348.97 is: 69,142,636.84
Step by Step Solution
- Step 1: Write the proportion equation
129,085,377.12 : 193,668,997.86 = 46,085,348.97 : x - Step 2: Convert to fraction form
129,085,377.12/193,668,997.86 = 46,085,348.97/x - Step 3: Cross multiply
129,085,377.12x = 193,668,997.86 × 46,085,348.97 - Step 4: Simplify right side
129,085,377.12x = 8,925,303,351,048,284 - Step 5: Solve for x
x = 8,925,303,351,048,284/129,085,377.12 - Step 6: Final answer
x = 69,142,636.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.