Finding the Fourth Proportional to 929,727,458.54, 1,283,081,872.98 and 512,039,633.12
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Solution
The fourth proportional to 929,727,458.54, 1,283,081,872.98 and 512,039,633.12 is: 706,646,625.81
Step by Step Solution
- Step 1: Write the proportion equation
929,727,458.54 : 1,283,081,872.98 = 512,039,633.12 : x - Step 2: Convert to fraction form
929,727,458.54/1,283,081,872.98 = 512,039,633.12/x - Step 3: Cross multiply
929,727,458.54x = 1,283,081,872.98 × 512,039,633.12 - Step 4: Simplify right side
929,727,458.54x = 656,988,771,497,186,304 - Step 5: Solve for x
x = 656,988,771,497,186,304/929,727,458.54 - Step 6: Final answer
x = 706,646,625.81
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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.