Finding the Fourth Proportional to 198,971,626.79, 274,581,934.27 and 115,389,313.58
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Solution
The fourth proportional to 198,971,626.79, 274,581,934.27 and 115,389,313.58 is: 159,237,884.45
Step by Step Solution
- Step 1: Write the proportion equation
198,971,626.79 : 274,581,934.27 = 115,389,313.58 : x - Step 2: Convert to fraction form
198,971,626.79/274,581,934.27 = 115,389,313.58/x - Step 3: Cross multiply
198,971,626.79x = 274,581,934.27 × 115,389,313.58 - Step 4: Simplify right side
198,971,626.79x = 31,683,820,915,511,068 - Step 5: Solve for x
x = 31,683,820,915,511,068/198,971,626.79 - Step 6: Final answer
x = 159,237,884.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.