Finding the Fourth Proportional to 278,868,212.40, 418,302,318.60 and 125,813,204.40
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Solution
The fourth proportional to 278,868,212.40, 418,302,318.60 and 125,813,204.40 is: 188,719,806.60
Step by Step Solution
- Step 1: Write the proportion equation
278,868,212.40 : 418,302,318.60 = 125,813,204.40 : x - Step 2: Convert to fraction form
278,868,212.40/418,302,318.60 = 125,813,204.40/x - Step 3: Cross multiply
278,868,212.40x = 418,302,318.60 × 125,813,204.40 - Step 4: Simplify right side
278,868,212.40x = 52,627,955,111,015,728 - Step 5: Solve for x
x = 52,627,955,111,015,728/278,868,212.40 - Step 6: Final answer
x = 188,719,806.60
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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.