Finding the Fourth Proportional to 128,750,571.48, 177,680,460.94 and 73,757,056.80
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Solution
The fourth proportional to 128,750,571.48, 177,680,460.94 and 73,757,056.80 is: 101,787,414.99
Step by Step Solution
- Step 1: Write the proportion equation
128,750,571.48 : 177,680,460.94 = 73,757,056.80 : x - Step 2: Convert to fraction form
128,750,571.48/177,680,460.94 = 73,757,056.80/x - Step 3: Cross multiply
128,750,571.48x = 177,680,460.94 × 73,757,056.80 - Step 4: Simplify right side
128,750,571.48x = 13,105,187,849,801,760 - Step 5: Solve for x
x = 13,105,187,849,801,760/128,750,571.48 - Step 6: Final answer
x = 101,787,414.99
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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.