Finding the Fourth Proportional to 139,968,117.79, 209,952,176.68 and 134,299,413.79
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Solution
The fourth proportional to 139,968,117.79, 209,952,176.68 and 134,299,413.79 is: 201,449,120.68
Step by Step Solution
- Step 1: Write the proportion equation
139,968,117.79 : 209,952,176.68 = 134,299,413.79 : x - Step 2: Convert to fraction form
139,968,117.79/209,952,176.68 = 134,299,413.79/x - Step 3: Cross multiply
139,968,117.79x = 209,952,176.68 × 134,299,413.79 - Step 4: Simplify right side
139,968,117.79x = 28,196,454,251,701,500 - Step 5: Solve for x
x = 28,196,454,251,701,500/139,968,117.79 - Step 6: Final answer
x = 201,449,120.68
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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.