Finding the Fourth Proportional to 196,696,199.80, 271,476,286.86 and 117,316,348.84
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Solution
The fourth proportional to 196,696,199.80, 271,476,286.86 and 117,316,348.84 is: 161,917,753.39
Step by Step Solution
- Step 1: Write the proportion equation
196,696,199.80 : 271,476,286.86 = 117,316,348.84 : x - Step 2: Convert to fraction form
196,696,199.80/271,476,286.86 = 117,316,348.84/x - Step 3: Cross multiply
196,696,199.80x = 271,476,286.86 × 117,316,348.84 - Step 4: Simplify right side
196,696,199.80x = 31,848,606,771,055,672 - Step 5: Solve for x
x = 31,848,606,771,055,672/196,696,199.80 - Step 6: Final answer
x = 161,917,753.39
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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.