Finding the Fourth Proportional to 81,674,079.60, 122,511,119.40 and 73,596,176.40
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Solution
The fourth proportional to 81,674,079.60, 122,511,119.40 and 73,596,176.40 is: 110,394,264.60
Step by Step Solution
- Step 1: Write the proportion equation
81,674,079.60 : 122,511,119.40 = 73,596,176.40 : x - Step 2: Convert to fraction form
81,674,079.60/122,511,119.40 = 73,596,176.40/x - Step 3: Cross multiply
81,674,079.60x = 122,511,119.40 × 73,596,176.40 - Step 4: Simplify right side
81,674,079.60x = 9,016,349,954,323,864 - Step 5: Solve for x
x = 9,016,349,954,323,864/81,674,079.60 - Step 6: Final answer
x = 110,394,264.60
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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.