Finding the Fourth Proportional to 135,378,403.85, 203,086,887.26 and 42,013,441.97
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Solution
The fourth proportional to 135,378,403.85, 203,086,887.26 and 42,013,441.97 is: 63,026,146.78
Step by Step Solution
- Step 1: Write the proportion equation
135,378,403.85 : 203,086,887.26 = 42,013,441.97 : x - Step 2: Convert to fraction form
135,378,403.85/203,086,887.26 = 42,013,441.97/x - Step 3: Cross multiply
135,378,403.85x = 203,086,887.26 × 42,013,441.97 - Step 4: Simplify right side
135,378,403.85x = 8,532,379,152,302,016 - Step 5: Solve for x
x = 8,532,379,152,302,016/135,378,403.85 - Step 6: Final answer
x = 63,026,146.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.