Finding the Fourth Proportional to 18,475,413.84, 27,713,147.09 and 7,545,605.40
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Solution
The fourth proportional to 18,475,413.84, 27,713,147.09 and 7,545,605.40 is: 11,318,418.85
Step by Step Solution
- Step 1: Write the proportion equation
18,475,413.84 : 27,713,147.09 = 7,545,605.40 : x - Step 2: Convert to fraction form
18,475,413.84/27,713,147.09 = 7,545,605.40/x - Step 3: Cross multiply
18,475,413.84x = 27,713,147.09 × 7,545,605.40 - Step 4: Simplify right side
18,475,413.84x = 209,112,472,295,570.28 - Step 5: Solve for x
x = 209,112,472,295,570.28/18,475,413.84 - Step 6: Final answer
x = 11,318,418.85
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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.