Finding the Fourth Proportional to 168,784,942.60, 253,177,413.90 and 161,982,497.80
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Solution
The fourth proportional to 168,784,942.60, 253,177,413.90 and 161,982,497.80 is: 242,973,746.70
Step by Step Solution
- Step 1: Write the proportion equation
168,784,942.60 : 253,177,413.90 = 161,982,497.80 : x - Step 2: Convert to fraction form
168,784,942.60/253,177,413.90 = 161,982,497.80/x - Step 3: Cross multiply
168,784,942.60x = 253,177,413.90 × 161,982,497.80 - Step 4: Simplify right side
168,784,942.60x = 41,010,309,890,066,440 - Step 5: Solve for x
x = 41,010,309,890,066,440/168,784,942.60 - Step 6: Final answer
x = 242,973,746.70
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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.