Finding the Fourth Proportional to 207,268,982.20, 310,761,755.70 and 98,146,430.20
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Solution
The fourth proportional to 207,268,982.20, 310,761,755.70 and 98,146,430.20 is: 147,152,538.89
Step by Step Solution
- Step 1: Write the proportion equation
207,268,982.20 : 310,761,755.70 = 98,146,430.20 : x - Step 2: Convert to fraction form
207,268,982.20/310,761,755.70 = 98,146,430.20/x - Step 3: Cross multiply
207,268,982.20x = 310,761,755.70 × 98,146,430.20 - Step 4: Simplify right side
207,268,982.20x = 30,500,156,964,639,500 - Step 5: Solve for x
x = 30,500,156,964,639,500/207,268,982.20 - Step 6: Final answer
x = 147,152,538.89
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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.