Finding the Fourth Proportional to 418,845,635.12, 577,999,924.70 and 230,691,450.44
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Solution
The fourth proportional to 418,845,635.12, 577,999,924.70 and 230,691,450.44 is: 318,350,317.64
Step by Step Solution
- Step 1: Write the proportion equation
418,845,635.12 : 577,999,924.70 = 230,691,450.44 : x - Step 2: Convert to fraction form
418,845,635.12/577,999,924.70 = 230,691,450.44/x - Step 3: Cross multiply
418,845,635.12x = 577,999,924.70 × 230,691,450.44 - Step 4: Simplify right side
418,845,635.12x = 133,339,640,979,210,336 - Step 5: Solve for x
x = 133,339,640,979,210,336/418,845,635.12 - Step 6: Final answer
x = 318,350,317.64
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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.