Finding the Fourth Proportional to 91,149,455.81, 125,787,089.48 and 53,981,850.08
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Solution
The fourth proportional to 91,149,455.81, 125,787,089.48 and 53,981,850.08 is: 74,495,450.86
Step by Step Solution
- Step 1: Write the proportion equation
91,149,455.81 : 125,787,089.48 = 53,981,850.08 : x - Step 2: Convert to fraction form
91,149,455.81/125,787,089.48 = 53,981,850.08/x - Step 3: Cross multiply
91,149,455.81x = 125,787,089.48 × 53,981,850.08 - Step 4: Simplify right side
91,149,455.81x = 6,790,219,805,410,061 - Step 5: Solve for x
x = 6,790,219,805,410,061/91,149,455.81 - Step 6: Final answer
x = 74,495,450.86
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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.