Finding the Fourth Proportional to 486,670,921.86, 671,602,159.88 and 263,651,008.08
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Solution
The fourth proportional to 486,670,921.86, 671,602,159.88 and 263,651,008.08 is: 363,836,380.04
Step by Step Solution
- Step 1: Write the proportion equation
486,670,921.86 : 671,602,159.88 = 263,651,008.08 : x - Step 2: Convert to fraction form
486,670,921.86/671,602,159.88 = 263,651,008.08/x - Step 3: Cross multiply
486,670,921.86x = 671,602,159.88 × 263,651,008.08 - Step 4: Simplify right side
486,670,921.86x = 177,068,586,481,067,328 - Step 5: Solve for x
x = 177,068,586,481,067,328/486,670,921.86 - Step 6: Final answer
x = 363,836,380.04
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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.