Finding the Fourth Proportional to 392,509,858.04, 541,667,186.30 and 216,304,175.68
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Solution
The fourth proportional to 392,509,858.04, 541,667,186.30 and 216,304,175.68 is: 298,501,736.52
Step by Step Solution
- Step 1: Write the proportion equation
392,509,858.04 : 541,667,186.30 = 216,304,175.68 : x - Step 2: Convert to fraction form
392,509,858.04/541,667,186.30 = 216,304,175.68/x - Step 3: Cross multiply
392,509,858.04x = 541,667,186.30 × 216,304,175.68 - Step 4: Simplify right side
392,509,858.04x = 117,164,874,225,526,480 - Step 5: Solve for x
x = 117,164,874,225,526,480/392,509,858.04 - Step 6: Final answer
x = 298,501,736.52
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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.