Finding the Fourth Proportional to 1,190,436,612.12, 1,784,965,498.44 and 403,226,427.96
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Solution
The fourth proportional to 1,190,436,612.12, 1,784,965,498.44 and 403,226,427.96 is: 604,606,120.68
Step by Step Solution
- Step 1: Write the proportion equation
1,190,436,612.12 : 1,784,965,498.44 = 403,226,427.96 : x - Step 2: Convert to fraction form
1,190,436,612.12/1,784,965,498.44 = 403,226,427.96/x - Step 3: Cross multiply
1,190,436,612.12x = 1,784,965,498.44 × 403,226,427.96 - Step 4: Simplify right side
1,190,436,612.12x = 719,745,261,967,802,112 - Step 5: Solve for x
x = 719,745,261,967,802,112/1,190,436,612.12 - Step 6: Final answer
x = 604,606,120.68
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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.