Finding the Fourth Proportional to 417,489,442.51, 576,119,646.75 and 231,862,415.62
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Solution
The fourth proportional to 417,489,442.51, 576,119,646.75 and 231,862,415.62 is: 319,961,367.59
Step by Step Solution
- Step 1: Write the proportion equation
417,489,442.51 : 576,119,646.75 = 231,862,415.62 : x - Step 2: Convert to fraction form
417,489,442.51/576,119,646.75 = 231,862,415.62/x - Step 3: Cross multiply
417,489,442.51x = 576,119,646.75 × 231,862,415.62 - Step 4: Simplify right side
417,489,442.51x = 133,580,492,981,596,080 - Step 5: Solve for x
x = 133,580,492,981,596,080/417,489,442.51 - Step 6: Final answer
x = 319,961,367.59
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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.