Finding the Fourth Proportional to 5,636,643.49, 8,451,368.79 and 3,715,336.45
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Solution
The fourth proportional to 5,636,643.49, 8,451,368.79 and 3,715,336.45 is: 5,570,634.11
Step by Step Solution
- Step 1: Write the proportion equation
5,636,643.49 : 8,451,368.79 = 3,715,336.45 : x - Step 2: Convert to fraction form
5,636,643.49/8,451,368.79 = 3,715,336.45/x - Step 3: Cross multiply
5,636,643.49x = 8,451,368.79 × 3,715,336.45 - Step 4: Simplify right side
5,636,643.49x = 31,399,678,517,879.39 - Step 5: Solve for x
x = 31,399,678,517,879.39/5,636,643.49 - Step 6: Final answer
x = 5,570,634.11
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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.