Finding the Fourth Proportional to 123,304,007.68, 170,165,132.80 and 68,299,857.92
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Solution
The fourth proportional to 123,304,007.68, 170,165,132.80 and 68,299,857.92 is: 94,256,907.07
Step by Step Solution
- Step 1: Write the proportion equation
123,304,007.68 : 170,165,132.80 = 68,299,857.92 : x - Step 2: Convert to fraction form
123,304,007.68/170,165,132.80 = 68,299,857.92/x - Step 3: Cross multiply
123,304,007.68x = 170,165,132.80 × 68,299,857.92 - Step 4: Simplify right side
123,304,007.68x = 11,622,254,393,177,932 - Step 5: Solve for x
x = 11,622,254,393,177,932/123,304,007.68 - Step 6: Final answer
x = 94,256,907.07
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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.