Finding the Fourth Proportional to 1,554,625,577.80, 2,331,963,249.90 and 405,768,233.80
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Solution
The fourth proportional to 1,554,625,577.80, 2,331,963,249.90 and 405,768,233.80 is: 608,658,845.39
Step by Step Solution
- Step 1: Write the proportion equation
1,554,625,577.80 : 2,331,963,249.90 = 405,768,233.80 : x - Step 2: Convert to fraction form
1,554,625,577.80/2,331,963,249.90 = 405,768,233.80/x - Step 3: Cross multiply
1,554,625,577.80x = 2,331,963,249.90 × 405,768,233.80 - Step 4: Simplify right side
1,554,625,577.80x = 946,236,609,198,431,104 - Step 5: Solve for x
x = 946,236,609,198,431,104/1,554,625,577.80 - Step 6: Final answer
x = 608,658,845.39
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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.