Finding the Fourth Proportional to 365,385,963.71, 504,232,090.38 and 198,121,920.99
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Solution
The fourth proportional to 365,385,963.71, 504,232,090.38 and 198,121,920.99 is: 273,407,958.42
Step by Step Solution
- Step 1: Write the proportion equation
365,385,963.71 : 504,232,090.38 = 198,121,920.99 : x - Step 2: Convert to fraction form
365,385,963.71/504,232,090.38 = 198,121,920.99/x - Step 3: Cross multiply
365,385,963.71x = 504,232,090.38 × 198,121,920.99 - Step 4: Simplify right side
365,385,963.71x = 99,899,430,370,888,896 - Step 5: Solve for x
x = 99,899,430,370,888,896/365,385,963.71 - Step 6: Final answer
x = 273,407,958.42
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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.