Finding the Fourth Proportional to 136,775,965.45, 188,750,561.14 and 74,052,046.28
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Solution
The fourth proportional to 136,775,965.45, 188,750,561.14 and 74,052,046.28 is: 102,191,677.05
Step by Step Solution
- Step 1: Write the proportion equation
136,775,965.45 : 188,750,561.14 = 74,052,046.28 : x - Step 2: Convert to fraction form
136,775,965.45/188,750,561.14 = 74,052,046.28/x - Step 3: Cross multiply
136,775,965.45x = 188,750,561.14 × 74,052,046.28 - Step 4: Simplify right side
136,775,965.45x = 13,977,365,288,915,248 - Step 5: Solve for x
x = 13,977,365,288,915,248/136,775,965.45 - Step 6: Final answer
x = 102,191,677.05
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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.