Finding the Fourth Proportional to 269,393,157.18, 403,964,114.49 and 139,965,972.30
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Solution
The fourth proportional to 269,393,157.18, 403,964,114.49 and 139,965,972.30 is: 209,883,690.63
Step by Step Solution
- Step 1: Write the proportion equation
269,393,157.18 : 403,964,114.49 = 139,965,972.30 : x - Step 2: Convert to fraction form
269,393,157.18/403,964,114.49 = 139,965,972.30/x - Step 3: Cross multiply
269,393,157.18x = 403,964,114.49 × 139,965,972.30 - Step 4: Simplify right side
269,393,157.18x = 56,541,230,058,901,376 - Step 5: Solve for x
x = 56,541,230,058,901,376/269,393,157.18 - Step 6: Final answer
x = 209,883,690.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.