Finding the Fourth Proportional to 91,539,161.70, 126,203,838.08 and 66,057,197.60
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Solution
The fourth proportional to 91,539,161.70, 126,203,838.08 and 66,057,197.60 is: 91,072,189.37
Step by Step Solution
- Step 1: Write the proportion equation
91,539,161.70 : 126,203,838.08 = 66,057,197.60 : x - Step 2: Convert to fraction form
91,539,161.70/126,203,838.08 = 66,057,197.60/x - Step 3: Cross multiply
91,539,161.70x = 126,203,838.08 × 66,057,197.60 - Step 4: Simplify right side
91,539,161.70x = 8,336,671,868,967,659 - Step 5: Solve for x
x = 8,336,671,868,967,659/91,539,161.70 - Step 6: Final answer
x = 91,072,189.37
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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.