Finding the Fourth Proportional to 128,736,476.49, 193,086,533.48 and 41,286,629.94
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Solution
The fourth proportional to 128,736,476.49, 193,086,533.48 and 41,286,629.94 is: 61,924,114.06
Step by Step Solution
- Step 1: Write the proportion equation
128,736,476.49 : 193,086,533.48 = 41,286,629.94 : x - Step 2: Convert to fraction form
128,736,476.49/193,086,533.48 = 41,286,629.94/x - Step 3: Cross multiply
128,736,476.49x = 193,086,533.48 × 41,286,629.94 - Step 4: Simplify right side
128,736,476.49x = 7,971,892,253,979,747 - Step 5: Solve for x
x = 7,971,892,253,979,747/128,736,476.49 - Step 6: Final answer
x = 61,924,114.06
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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.