Finding the Fourth Proportional to 66,050,021.09, 91,146,528.99 and 36,683,244.50
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Solution
The fourth proportional to 66,050,021.09, 91,146,528.99 and 36,683,244.50 is: 50,621,488.87
Step by Step Solution
- Step 1: Write the proportion equation
66,050,021.09 : 91,146,528.99 = 36,683,244.50 : x - Step 2: Convert to fraction form
66,050,021.09/91,146,528.99 = 36,683,244.50/x - Step 3: Cross multiply
66,050,021.09x = 91,146,528.99 × 36,683,244.50 - Step 4: Simplify right side
66,050,021.09x = 3,343,550,407,810,775 - Step 5: Solve for x
x = 3,343,550,407,810,775/66,050,021.09 - Step 6: Final answer
x = 50,621,488.87
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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.