Finding the Fourth Proportional to 4,990,158.55, 6,886,413.98 and 2,698,313.77
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Solution
The fourth proportional to 4,990,158.55, 6,886,413.98 and 2,698,313.77 is: 3,723,670.39
Step by Step Solution
- Step 1: Write the proportion equation
4,990,158.55 : 6,886,413.98 = 2,698,313.77 : x - Step 2: Convert to fraction form
4,990,158.55/6,886,413.98 = 2,698,313.77/x - Step 3: Cross multiply
4,990,158.55x = 6,886,413.98 × 2,698,313.77 - Step 4: Simplify right side
4,990,158.55x = 18,581,705,642,242.56 - Step 5: Solve for x
x = 18,581,705,642,242.56/4,990,158.55 - Step 6: Final answer
x = 3,723,670.39
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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.