Finding the Fourth Proportional to 15,519,859.98, 21,417,413.49 and 8,997,270.90
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Solution
The fourth proportional to 15,519,859.98, 21,417,413.49 and 8,997,270.90 is: 12,416,237.74
Step by Step Solution
- Step 1: Write the proportion equation
15,519,859.98 : 21,417,413.49 = 8,997,270.90 : x - Step 2: Convert to fraction form
15,519,859.98/21,417,413.49 = 8,997,270.90/x - Step 3: Cross multiply
15,519,859.98x = 21,417,413.49 × 8,997,270.90 - Step 4: Simplify right side
15,519,859.98x = 192,698,271,146,844.44 - Step 5: Solve for x
x = 192,698,271,146,844.44/15,519,859.98 - Step 6: Final answer
x = 12,416,237.74
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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.