Finding the Fourth Proportional to 7,245,612.45, 9,999,891.18 and 4,674,772.08
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Solution
The fourth proportional to 7,245,612.45, 9,999,891.18 and 4,674,772.08 is: 6,451,795.82
Step by Step Solution
- Step 1: Write the proportion equation
7,245,612.45 : 9,999,891.18 = 4,674,772.08 : x - Step 2: Convert to fraction form
7,245,612.45/9,999,891.18 = 4,674,772.08/x - Step 3: Cross multiply
7,245,612.45x = 9,999,891.18 × 4,674,772.08 - Step 4: Simplify right side
7,245,612.45x = 46,747,212,091,302.25 - Step 5: Solve for x
x = 46,747,212,091,302.25/7,245,612.45 - Step 6: Final answer
x = 6,451,795.82
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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.