Finding the Fourth Proportional to 1,868,276,699.40, 2,802,415,049.10 and 1,180,305,985.80
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Solution
The fourth proportional to 1,868,276,699.40, 2,802,415,049.10 and 1,180,305,985.80 is: 1,770,458,978.70
Step by Step Solution
- Step 1: Write the proportion equation
1,868,276,699.40 : 2,802,415,049.10 = 1,180,305,985.80 : x - Step 2: Convert to fraction form
1,868,276,699.40/2,802,415,049.10 = 1,180,305,985.80/x - Step 3: Cross multiply
1,868,276,699.40x = 2,802,415,049.10 × 1,180,305,985.80 - Step 4: Simplify right side
1,868,276,699.40x = 3,307,707,257,148,730,880 - Step 5: Solve for x
x = 3,307,707,257,148,730,880/1,868,276,699.40 - Step 6: Final answer
x = 1,770,458,978.70
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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.