Finding the Fourth Proportional to 14,342,816.48, 19,792,509.30 and 7,816,305.80
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Solution
The fourth proportional to 14,342,816.48, 19,792,509.30 and 7,816,305.80 is: 10,786,187.33
Step by Step Solution
- Step 1: Write the proportion equation
14,342,816.48 : 19,792,509.30 = 7,816,305.80 : x - Step 2: Convert to fraction form
14,342,816.48/19,792,509.30 = 7,816,305.80/x - Step 3: Cross multiply
14,342,816.48x = 19,792,509.30 × 7,816,305.80 - Step 4: Simplify right side
14,342,816.48x = 154,704,305,287,625.22 - Step 5: Solve for x
x = 154,704,305,287,625.22/14,342,816.48 - Step 6: Final answer
x = 10,786,187.33
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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.