Finding the Fourth Proportional to 21,648,413.97, 29,861,048.70 and 14,206,558.68
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Solution
The fourth proportional to 21,648,413.97, 29,861,048.70 and 14,206,558.68 is: 19,596,019.42
Step by Step Solution
- Step 1: Write the proportion equation
21,648,413.97 : 29,861,048.70 = 14,206,558.68 : x - Step 2: Convert to fraction form
21,648,413.97/29,861,048.70 = 14,206,558.68/x - Step 3: Cross multiply
21,648,413.97x = 29,861,048.70 × 14,206,558.68 - Step 4: Simplify right side
21,648,413.97x = 424,222,740,602,887.69 - Step 5: Solve for x
x = 424,222,740,602,887.69/21,648,413.97 - Step 6: Final answer
x = 19,596,019.42
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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.