Finding the Fourth Proportional to 91,149,457.93, 125,787,092.42 and 53,981,852.20
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Solution
The fourth proportional to 91,149,457.93, 125,787,092.42 and 53,981,852.20 is: 74,495,453.80
Step by Step Solution
- Step 1: Write the proportion equation
91,149,457.93 : 125,787,092.42 = 53,981,852.20 : x - Step 2: Convert to fraction form
91,149,457.93/125,787,092.42 = 53,981,852.20/x - Step 3: Cross multiply
91,149,457.93x = 125,787,092.42 × 53,981,852.20 - Step 4: Simplify right side
91,149,457.93x = 6,790,220,231,684,181 - Step 5: Solve for x
x = 6,790,220,231,684,181/91,149,457.93 - Step 6: Final answer
x = 74,495,453.80
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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.