Finding the Fourth Proportional to 7,557,581,630.40, 11,328,058,346.40 and 2,647,728,139.20
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Solution
The fourth proportional to 7,557,581,630.40, 11,328,058,346.40 and 2,647,728,139.20 is: 3,968,679,441.80
Step by Step Solution
- Step 1: Write the proportion equation
7,557,581,630.40 : 11,328,058,346.40 = 2,647,728,139.20 : x - Step 2: Convert to fraction form
7,557,581,630.40/11,328,058,346.40 = 2,647,728,139.20/x - Step 3: Cross multiply
7,557,581,630.40x = 11,328,058,346.40 × 2,647,728,139.20 - Step 4: Simplify right side
7,557,581,630.40x = 29,993,618,846,262,697,984 - Step 5: Solve for x
x = 29,993,618,846,262,697,984/7,557,581,630.40 - Step 6: Final answer
x = 3,968,679,441.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.