Finding the Fourth Proportional to 290,207,226.36, 400,502,818.62 and 218,551,857.96
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Solution
The fourth proportional to 290,207,226.36, 400,502,818.62 and 218,551,857.96 is: 301,614,250.70
Step by Step Solution
- Step 1: Write the proportion equation
290,207,226.36 : 400,502,818.62 = 218,551,857.96 : x - Step 2: Convert to fraction form
290,207,226.36/400,502,818.62 = 218,551,857.96/x - Step 3: Cross multiply
290,207,226.36x = 400,502,818.62 × 218,551,857.96 - Step 4: Simplify right side
290,207,226.36x = 87,530,635,127,617,888 - Step 5: Solve for x
x = 87,530,635,127,617,888/290,207,226.36 - Step 6: Final answer
x = 301,614,250.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.