Finding the Fourth Proportional to 128,736,473.49, 193,086,528.98 and 41,286,626.93
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Solution
The fourth proportional to 128,736,473.49, 193,086,528.98 and 41,286,626.93 is: 61,924,109.55
Step by Step Solution
- Step 1: Write the proportion equation
128,736,473.49 : 193,086,528.98 = 41,286,626.93 : x - Step 2: Convert to fraction form
128,736,473.49/193,086,528.98 = 41,286,626.93/x - Step 3: Cross multiply
128,736,473.49x = 193,086,528.98 × 41,286,626.93 - Step 4: Simplify right side
128,736,473.49x = 7,971,891,487,482,176 - Step 5: Solve for x
x = 7,971,891,487,482,176/128,736,473.49 - Step 6: Final answer
x = 61,924,109.55
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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.