Finding the Fourth Proportional to 385,456,978,625.11, 531,943,387,312.04 and 211,848,271,723.14
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Solution
The fourth proportional to 385,456,978,625.11, 531,943,387,312.04 and 211,848,271,723.14 is: 292,357,626,157.32
Step by Step Solution
- Step 1: Write the proportion equation
385,456,978,625.11 : 531,943,387,312.04 = 211,848,271,723.14 : x - Step 2: Convert to fraction form
385,456,978,625.11/531,943,387,312.04 = 211,848,271,723.14/x - Step 3: Cross multiply
385,456,978,625.11x = 531,943,387,312.04 × 211,848,271,723.14 - Step 4: Simplify right side
385,456,978,625.11x = 112,691,287,256,608,551,206,912 - Step 5: Solve for x
x = 112,691,287,256,608,551,206,912/385,456,978,625.11 - Step 6: Final answer
x = 292,357,626,157.32
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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.