Finding the Fourth Proportional to 117,517,555.32, 162,003,305.04 and 82,125,478.08
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Solution
The fourth proportional to 117,517,555.32, 162,003,305.04 and 82,125,478.08 is: 113,213,713.82
Step by Step Solution
- Step 1: Write the proportion equation
117,517,555.32 : 162,003,305.04 = 82,125,478.08 : x - Step 2: Convert to fraction form
117,517,555.32/162,003,305.04 = 82,125,478.08/x - Step 3: Cross multiply
117,517,555.32x = 162,003,305.04 × 82,125,478.08 - Step 4: Simplify right side
117,517,555.32x = 13,304,598,876,950,072 - Step 5: Solve for x
x = 13,304,598,876,950,072/117,517,555.32 - Step 6: Final answer
x = 113,213,713.82
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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.