Finding the Fourth Proportional to 66,154,725.61, 91,289,771.42 and 36,785,427.62
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Solution
The fourth proportional to 66,154,725.61, 91,289,771.42 and 36,785,427.62 is: 50,761,804.96
Step by Step Solution
- Step 1: Write the proportion equation
66,154,725.61 : 91,289,771.42 = 36,785,427.62 : x - Step 2: Convert to fraction form
66,154,725.61/91,289,771.42 = 36,785,427.62/x - Step 3: Cross multiply
66,154,725.61x = 91,289,771.42 × 36,785,427.62 - Step 4: Simplify right side
66,154,725.61x = 3,358,133,278,376,379 - Step 5: Solve for x
x = 3,358,133,278,376,379/66,154,725.61 - Step 6: Final answer
x = 50,761,804.96
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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.