Finding the Fourth Proportional to 116,299,217.70, 160,493,981.88 and 64,090,126.62
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Solution
The fourth proportional to 116,299,217.70, 160,493,981.88 and 64,090,126.62 is: 88,444,959.68
Step by Step Solution
- Step 1: Write the proportion equation
116,299,217.70 : 160,493,981.88 = 64,090,126.62 : x - Step 2: Convert to fraction form
116,299,217.70/160,493,981.88 = 64,090,126.62/x - Step 3: Cross multiply
116,299,217.70x = 160,493,981.88 × 64,090,126.62 - Step 4: Simplify right side
116,299,217.70x = 10,286,079,620,437,184 - Step 5: Solve for x
x = 10,286,079,620,437,184/116,299,217.70 - Step 6: Final answer
x = 88,444,959.68
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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.