Finding the Fourth Proportional to 401,421,238.99, 553,916,379.97 and 222,812,656.42
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Solution
The fourth proportional to 401,421,238.99, 553,916,379.97 and 222,812,656.42 is: 307,456,527.12
Step by Step Solution
- Step 1: Write the proportion equation
401,421,238.99 : 553,916,379.97 = 222,812,656.42 : x - Step 2: Convert to fraction form
401,421,238.99/553,916,379.97 = 222,812,656.42/x - Step 3: Cross multiply
401,421,238.99x = 553,916,379.97 × 222,812,656.42 - Step 4: Simplify right side
401,421,238.99x = 123,419,580,054,348,672 - Step 5: Solve for x
x = 123,419,580,054,348,672/401,421,238.99 - Step 6: Final answer
x = 307,456,527.12
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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.