Finding the Fourth Proportional to 91,085,380.80, 125,699,242.68 and 49,832,962.08
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Solution
The fourth proportional to 91,085,380.80, 125,699,242.68 and 49,832,962.08 is: 68,770,263.01
Step by Step Solution
- Step 1: Write the proportion equation
91,085,380.80 : 125,699,242.68 = 49,832,962.08 : x - Step 2: Convert to fraction form
91,085,380.80/125,699,242.68 = 49,832,962.08/x - Step 3: Cross multiply
91,085,380.80x = 125,699,242.68 × 49,832,962.08 - Step 4: Simplify right side
91,085,380.80x = 6,263,965,593,957,158 - Step 5: Solve for x
x = 6,263,965,593,957,158/91,085,380.80 - Step 6: Final answer
x = 68,770,263.01
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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.