Finding the Fourth Proportional to 141,160,698.05, 194,816,942.36 and 85,436,784.63
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Solution
The fourth proportional to 141,160,698.05, 194,816,942.36 and 85,436,784.63 is: 117,911,949.83
Step by Step Solution
- Step 1: Write the proportion equation
141,160,698.05 : 194,816,942.36 = 85,436,784.63 : x - Step 2: Convert to fraction form
141,160,698.05/194,816,942.36 = 85,436,784.63/x - Step 3: Cross multiply
141,160,698.05x = 194,816,942.36 × 85,436,784.63 - Step 4: Simplify right side
141,160,698.05x = 16,644,533,146,259,258 - Step 5: Solve for x
x = 16,644,533,146,259,258/141,160,698.05 - Step 6: Final answer
x = 117,911,949.83
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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.