Finding the Fourth Proportional to 306,141,515.42, 422,511,157.98 and 174,002,374.80
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Solution
The fourth proportional to 306,141,515.42, 422,511,157.98 and 174,002,374.80 is: 240,143,662.87
Step by Step Solution
- Step 1: Write the proportion equation
306,141,515.42 : 422,511,157.98 = 174,002,374.80 : x - Step 2: Convert to fraction form
306,141,515.42/422,511,157.98 = 174,002,374.80/x - Step 3: Cross multiply
306,141,515.42x = 422,511,157.98 × 174,002,374.80 - Step 4: Simplify right side
306,141,515.42x = 73,517,944,868,017,984 - Step 5: Solve for x
x = 73,517,944,868,017,984/306,141,515.42 - Step 6: Final answer
x = 240,143,662.87
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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.