Finding the Fourth Proportional to 642,081,342, 886,042,599.48 and 363,624,858.84
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Solution
The fourth proportional to 642,081,342, 886,042,599.48 and 363,624,858.84 is: 501,785,512.34
Step by Step Solution
- Step 1: Write the proportion equation
642,081,342 : 886,042,599.48 = 363,624,858.84 : x - Step 2: Convert to fraction form
642,081,342/886,042,599.48 = 363,624,858.84/x - Step 3: Cross multiply
642,081,342x = 886,042,599.48 × 363,624,858.84 - Step 4: Simplify right side
642,081,342x = 322,187,115,162,141,632 - Step 5: Solve for x
x = 322,187,115,162,141,632/642,081,342 - Step 6: Final answer
x = 501,785,512.34
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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.