Finding the Fourth Proportional to 91,485,902,918.99, 126,253,611,684 and 50,842,527,148.75
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Solution
The fourth proportional to 91,485,902,918.99, 126,253,611,684 and 50,842,527,148.75 is: 70,164,391,177.90
Step by Step Solution
- Step 1: Write the proportion equation
91,485,902,918.99 : 126,253,611,684 = 50,842,527,148.75 : x - Step 2: Convert to fraction form
91,485,902,918.99/126,253,611,684 = 50,842,527,148.75/x - Step 3: Cross multiply
91,485,902,918.99x = 126,253,611,684 × 50,842,527,148.75 - Step 4: Simplify right side
91,485,902,918.99x = 6,419,052,679,672,014,831,616 - Step 5: Solve for x
x = 6,419,052,679,672,014,831,616/91,485,902,918.99 - Step 6: Final answer
x = 70,164,391,177.90
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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.