Finding the Fourth Proportional to 7,787,391.68, 11,688,413.98 and 3,951,967.16
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Solution
The fourth proportional to 7,787,391.68, 11,688,413.98 and 3,951,967.16 is: 5,931,668.79
Step by Step Solution
- Step 1: Write the proportion equation
7,787,391.68 : 11,688,413.98 = 3,951,967.16 : x - Step 2: Convert to fraction form
7,787,391.68/11,688,413.98 = 3,951,967.16/x - Step 3: Cross multiply
7,787,391.68x = 11,688,413.98 × 3,951,967.16 - Step 4: Simplify right side
7,787,391.68x = 46,192,228,201,444.90 - Step 5: Solve for x
x = 46,192,228,201,444.90/7,787,391.68 - Step 6: Final answer
x = 5,931,668.79
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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.