Finding the Fourth Proportional to 1,167,067,944.63, 1,610,548,948.64 and 631,220,207.98
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Solution
The fourth proportional to 1,167,067,944.63, 1,610,548,948.64 and 631,220,207.98 is: 871,081,282.80
Step by Step Solution
- Step 1: Write the proportion equation
1,167,067,944.63 : 1,610,548,948.64 = 631,220,207.98 : x - Step 2: Convert to fraction form
1,167,067,944.63/1,610,548,948.64 = 631,220,207.98/x - Step 3: Cross multiply
1,167,067,944.63x = 1,610,548,948.64 × 631,220,207.98 - Step 4: Simplify right side
1,167,067,944.63x = 1,016,611,042,322,511,232 - Step 5: Solve for x
x = 1,016,611,042,322,511,232/1,167,067,944.63 - Step 6: Final answer
x = 871,081,282.80
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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.