Finding the Fourth Proportional to 128,750,591.87, 177,680,489.05 and 73,757,077.19
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Solution
The fourth proportional to 128,750,591.87, 177,680,489.05 and 73,757,077.19 is: 101,787,443.12
Step by Step Solution
- Step 1: Write the proportion equation
128,750,591.87 : 177,680,489.05 = 73,757,077.19 : x - Step 2: Convert to fraction form
128,750,591.87/177,680,489.05 = 73,757,077.19/x - Step 3: Cross multiply
128,750,591.87x = 177,680,489.05 × 73,757,077.19 - Step 4: Simplify right side
128,750,591.87x = 13,105,193,546,017,800 - Step 5: Solve for x
x = 13,105,193,546,017,800/128,750,591.87 - Step 6: Final answer
x = 101,787,443.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.