Finding the Fourth Proportional to 231,490,851.09, 319,457,724.42 and 125,644,304.35
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Solution
The fourth proportional to 231,490,851.09, 319,457,724.42 and 125,644,304.35 is: 173,389,329.93
Step by Step Solution
- Step 1: Write the proportion equation
231,490,851.09 : 319,457,724.42 = 125,644,304.35 : x - Step 2: Convert to fraction form
231,490,851.09/319,457,724.42 = 125,644,304.35/x - Step 3: Cross multiply
231,490,851.09x = 319,457,724.42 × 125,644,304.35 - Step 4: Simplify right side
231,490,851.09x = 40,138,043,554,855,392 - Step 5: Solve for x
x = 40,138,043,554,855,392/231,490,851.09 - Step 6: Final answer
x = 173,389,329.93
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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.