Finding the Fourth Proportional to 820,512,054.70, 1,230,768,082.05 and 246,083,382.70
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Solution
The fourth proportional to 820,512,054.70, 1,230,768,082.05 and 246,083,382.70 is: 369,125,074.05
Step by Step Solution
- Step 1: Write the proportion equation
820,512,054.70 : 1,230,768,082.05 = 246,083,382.70 : x - Step 2: Convert to fraction form
820,512,054.70/1,230,768,082.05 = 246,083,382.70/x - Step 3: Cross multiply
820,512,054.70x = 1,230,768,082.05 × 246,083,382.70 - Step 4: Simplify right side
820,512,054.70x = 302,871,572,950,055,104 - Step 5: Solve for x
x = 302,871,572,950,055,104/820,512,054.70 - Step 6: Final answer
x = 369,125,074.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.