Finding the Fourth Proportional to 107,082,742.26, 147,819,386.22 and 72,322,515.09
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Solution
The fourth proportional to 107,082,742.26, 147,819,386.22 and 72,322,515.09 is: 99,835,599.69
Step by Step Solution
- Step 1: Write the proportion equation
107,082,742.26 : 147,819,386.22 = 72,322,515.09 : x - Step 2: Convert to fraction form
107,082,742.26/147,819,386.22 = 72,322,515.09/x - Step 3: Cross multiply
107,082,742.26x = 147,819,386.22 × 72,322,515.09 - Step 4: Simplify right side
107,082,742.26x = 10,690,669,790,490,488 - Step 5: Solve for x
x = 10,690,669,790,490,488/107,082,742.26 - Step 6: Final answer
x = 99,835,599.69
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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.