Finding the Fourth Proportional to 778,129,367.49, 1,167,192,612.09 and 253,497,843.09
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Solution
The fourth proportional to 778,129,367.49, 1,167,192,612.09 and 253,497,843.09 is: 380,246,295.79
Step by Step Solution
- Step 1: Write the proportion equation
778,129,367.49 : 1,167,192,612.09 = 253,497,843.09 : x - Step 2: Convert to fraction form
778,129,367.49/1,167,192,612.09 = 253,497,843.09/x - Step 3: Cross multiply
778,129,367.49x = 1,167,192,612.09 × 253,497,843.09 - Step 4: Simplify right side
778,129,367.49x = 295,880,809,635,398,016 - Step 5: Solve for x
x = 295,880,809,635,398,016/778,129,367.49 - Step 6: Final answer
x = 380,246,295.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.