Finding the Fourth Proportional to 187,816,201.40, 281,724,302.10 and 129,365,564.60
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Solution
The fourth proportional to 187,816,201.40, 281,724,302.10 and 129,365,564.60 is: 194,048,346.90
Step by Step Solution
- Step 1: Write the proportion equation
187,816,201.40 : 281,724,302.10 = 129,365,564.60 : x - Step 2: Convert to fraction form
187,816,201.40/281,724,302.10 = 129,365,564.60/x - Step 3: Cross multiply
187,816,201.40x = 281,724,302.10 × 129,365,564.60 - Step 4: Simplify right side
187,816,201.40x = 36,445,423,402,707,464 - Step 5: Solve for x
x = 36,445,423,402,707,464/187,816,201.40 - Step 6: Final answer
x = 194,048,346.90
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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.