Finding the Fourth Proportional to 100,622,413.68, 138,863,850.92 and 56,583,270.96
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Solution
The fourth proportional to 100,622,413.68, 138,863,850.92 and 56,583,270.96 is: 78,087,680.62
Step by Step Solution
- Step 1: Write the proportion equation
100,622,413.68 : 138,863,850.92 = 56,583,270.96 : x - Step 2: Convert to fraction form
100,622,413.68/138,863,850.92 = 56,583,270.96/x - Step 3: Cross multiply
100,622,413.68x = 138,863,850.92 × 56,583,270.96 - Step 4: Simplify right side
100,622,413.68x = 7,857,370,903,155,405 - Step 5: Solve for x
x = 7,857,370,903,155,405/100,622,413.68 - Step 6: Final answer
x = 78,087,680.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.