Finding the Fourth Proportional to 1,761,503,436.65, 2,643,285,486.20 and 656,871,431.69
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Solution
The fourth proportional to 1,761,503,436.65, 2,643,285,486.20 and 656,871,431.69 is: 985,691,362.02
Step by Step Solution
- Step 1: Write the proportion equation
1,761,503,436.65 : 2,643,285,486.20 = 656,871,431.69 : x - Step 2: Convert to fraction form
1,761,503,436.65/2,643,285,486.20 = 656,871,431.69/x - Step 3: Cross multiply
1,761,503,436.65x = 2,643,285,486.20 × 656,871,431.69 - Step 4: Simplify right side
1,761,503,436.65x = 1,736,298,721,669,090,816 - Step 5: Solve for x
x = 1,736,298,721,669,090,816/1,761,503,436.65 - Step 6: Final answer
x = 985,691,362.02
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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.