Finding the Fourth Proportional to 415,456,272.33, 573,279,706.60 and 239,301,557.97
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Solution
The fourth proportional to 415,456,272.33, 573,279,706.60 and 239,301,557.97 is: 330,207,379.40
Step by Step Solution
- Step 1: Write the proportion equation
415,456,272.33 : 573,279,706.60 = 239,301,557.97 : x - Step 2: Convert to fraction form
415,456,272.33/573,279,706.60 = 239,301,557.97/x - Step 3: Cross multiply
415,456,272.33x = 573,279,706.60 × 239,301,557.97 - Step 4: Simplify right side
415,456,272.33x = 137,186,726,941,964,496 - Step 5: Solve for x
x = 137,186,726,941,964,496/415,456,272.33 - Step 6: Final answer
x = 330,207,379.40
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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.