Finding the Fourth Proportional to 226,403,639.84, 312,438,081.03 and 128,623,861.28
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Solution
The fourth proportional to 226,403,639.84, 312,438,081.03 and 128,623,861.28 is: 177,501,529.67
Step by Step Solution
- Step 1: Write the proportion equation
226,403,639.84 : 312,438,081.03 = 128,623,861.28 : x - Step 2: Convert to fraction form
226,403,639.84/312,438,081.03 = 128,623,861.28/x - Step 3: Cross multiply
226,403,639.84x = 312,438,081.03 × 128,623,861.28 - Step 4: Simplify right side
226,403,639.84x = 40,186,992,393,773,208 - Step 5: Solve for x
x = 40,186,992,393,773,208/226,403,639.84 - Step 6: Final answer
x = 177,501,529.67
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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.