Finding the Fourth Proportional to 99,686,328.44, 137,561,393.66 and 55,629,869.54
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Solution
The fourth proportional to 99,686,328.44, 137,561,393.66 and 55,629,869.54 is: 76,766,016.99
Step by Step Solution
- Step 1: Write the proportion equation
99,686,328.44 : 137,561,393.66 = 55,629,869.54 : x - Step 2: Convert to fraction form
99,686,328.44/137,561,393.66 = 55,629,869.54/x - Step 3: Cross multiply
99,686,328.44x = 137,561,393.66 × 55,629,869.54 - Step 4: Simplify right side
99,686,328.44x = 7,652,522,382,080,426 - Step 5: Solve for x
x = 7,652,522,382,080,426/99,686,328.44 - Step 6: Final answer
x = 76,766,016.99
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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.