Finding the Fourth Proportional to 13,549,913,911.04, 18,699,385,838.79 and 8,125,332,692.49
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Solution
The fourth proportional to 13,549,913,911.04, 18,699,385,838.79 and 8,125,332,692.49 is: 11,213,261,728.68
Step by Step Solution
- Step 1: Write the proportion equation
13,549,913,911.04 : 18,699,385,838.79 = 8,125,332,692.49 : x - Step 2: Convert to fraction form
13,549,913,911.04/18,699,385,838.79 = 8,125,332,692.49/x - Step 3: Cross multiply
13,549,913,911.04x = 18,699,385,838.79 × 8,125,332,692.49 - Step 4: Simplify right side
13,549,913,911.04x = 151,938,731,085,504,741,376 - Step 5: Solve for x
x = 151,938,731,085,504,741,376/13,549,913,911.04 - Step 6: Final answer
x = 11,213,261,728.68
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1.5x scale
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.