Finding the Fourth Proportional to 15,337,413.04, 21,163,028.83 and 9,142,348.70
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Solution
The fourth proportional to 15,337,413.04, 21,163,028.83 and 9,142,348.70 is: 12,614,890.70
Step by Step Solution
- Step 1: Write the proportion equation
15,337,413.04 : 21,163,028.83 = 9,142,348.70 : x - Step 2: Convert to fraction form
15,337,413.04/21,163,028.83 = 9,142,348.70/x - Step 3: Cross multiply
15,337,413.04x = 21,163,028.83 × 9,142,348.70 - Step 4: Simplify right side
15,337,413.04x = 193,479,789,112,013 - Step 5: Solve for x
x = 193,479,789,112,013/15,337,413.04 - Step 6: Final answer
x = 12,614,890.70
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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.