Finding the Fourth Proportional to 292,479,634.92, 403,386,549.48 and 257,121,839.82
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Solution
The fourth proportional to 292,479,634.92, 403,386,549.48 and 257,121,839.82 is: 354,621,243.25
Step by Step Solution
- Step 1: Write the proportion equation
292,479,634.92 : 403,386,549.48 = 257,121,839.82 : x - Step 2: Convert to fraction form
292,479,634.92/403,386,549.48 = 257,121,839.82/x - Step 3: Cross multiply
292,479,634.92x = 403,386,549.48 × 257,121,839.82 - Step 4: Simplify right side
292,479,634.92x = 103,719,491,760,939,072 - Step 5: Solve for x
x = 103,719,491,760,939,072/292,479,634.92 - Step 6: Final answer
x = 354,621,243.25
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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.