Finding the Fourth Proportional to 151,168,929.92, 208,619,764.80 and 85,093,691.84
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Solution
The fourth proportional to 151,168,929.92, 208,619,764.80 and 85,093,691.84 is: 117,433,033.28
Step by Step Solution
- Step 1: Write the proportion equation
151,168,929.92 : 208,619,764.80 = 85,093,691.84 : x - Step 2: Convert to fraction form
151,168,929.92/208,619,764.80 = 85,093,691.84/x - Step 3: Cross multiply
151,168,929.92x = 208,619,764.80 × 85,093,691.84 - Step 4: Simplify right side
151,168,929.92x = 17,752,225,977,624,480 - Step 5: Solve for x
x = 17,752,225,977,624,480/151,168,929.92 - Step 6: Final answer
x = 117,433,033.28
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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.