Finding the Fourth Proportional to 5,196,581,052.72, 7,171,422,861.96 and 2,938,858,197.09
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Solution
The fourth proportional to 5,196,581,052.72, 7,171,422,861.96 and 2,938,858,197.09 is: 4,055,704,057.89
Step by Step Solution
- Step 1: Write the proportion equation
5,196,581,052.72 : 7,171,422,861.96 = 2,938,858,197.09 : x - Step 2: Convert to fraction form
5,196,581,052.72/7,171,422,861.96 = 2,938,858,197.09/x - Step 3: Cross multiply
5,196,581,052.72x = 7,171,422,861.96 × 2,938,858,197.09 - Step 4: Simplify right side
5,196,581,052.72x = 21,075,794,862,669,774,848 - Step 5: Solve for x
x = 21,075,794,862,669,774,848/5,196,581,052.72 - Step 6: Final answer
x = 4,055,704,057.89
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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.