Finding the Fourth Proportional to 770,728,755.42, 1,063,606,708.77 and 418,304,746.13
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Solution
The fourth proportional to 770,728,755.42, 1,063,606,708.77 and 418,304,746.13 is: 577,261,106.66
Step by Step Solution
- Step 1: Write the proportion equation
770,728,755.42 : 1,063,606,708.77 = 418,304,746.13 : x - Step 2: Convert to fraction form
770,728,755.42/1,063,606,708.77 = 418,304,746.13/x - Step 3: Cross multiply
770,728,755.42x = 1,063,606,708.77 × 418,304,746.13 - Step 4: Simplify right side
770,728,755.42x = 444,911,734,287,333,888 - Step 5: Solve for x
x = 444,911,734,287,333,888/770,728,755.42 - Step 6: Final answer
x = 577,261,106.66
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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.