Finding the Fourth Proportional to 151,351,194.80, 208,864,640.84 and 81,736,569
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Solution
The fourth proportional to 151,351,194.80, 208,864,640.84 and 81,736,569 is: 112,796,460.91
Step by Step Solution
- Step 1: Write the proportion equation
151,351,194.80 : 208,864,640.84 = 81,736,569 : x - Step 2: Convert to fraction form
151,351,194.80/208,864,640.84 = 81,736,569/x - Step 3: Cross multiply
151,351,194.80x = 208,864,640.84 × 81,736,569 - Step 4: Simplify right side
151,351,194.80x = 17,071,879,127,678,878 - Step 5: Solve for x
x = 17,071,879,127,678,878/151,351,194.80 - Step 6: Final answer
x = 112,796,460.91
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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.