Finding the Fourth Proportional to 135,070,414.96, 186,376,559.68 and 76,311,640.80
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Solution
The fourth proportional to 135,070,414.96, 186,376,559.68 and 76,311,640.80 is: 105,298,418.46
Step by Step Solution
- Step 1: Write the proportion equation
135,070,414.96 : 186,376,559.68 = 76,311,640.80 : x - Step 2: Convert to fraction form
135,070,414.96/186,376,559.68 = 76,311,640.80/x - Step 3: Cross multiply
135,070,414.96x = 186,376,559.68 × 76,311,640.80 - Step 4: Simplify right side
135,070,414.96x = 14,222,701,075,839,922 - Step 5: Solve for x
x = 14,222,701,075,839,922/135,070,414.96 - Step 6: Final answer
x = 105,298,418.46
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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.