Finding the Fourth Proportional to 138,295,139.80, 207,453,207.30 and 41,243,272.60
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Solution
The fourth proportional to 138,295,139.80, 207,453,207.30 and 41,243,272.60 is: 61,868,039.56
Step by Step Solution
- Step 1: Write the proportion equation
138,295,139.80 : 207,453,207.30 = 41,243,272.60 : x - Step 2: Convert to fraction form
138,295,139.80/207,453,207.30 = 41,243,272.60/x - Step 3: Cross multiply
138,295,139.80x = 207,453,207.30 × 41,243,272.60 - Step 4: Simplify right side
138,295,139.80x = 8,556,049,180,418,211 - Step 5: Solve for x
x = 8,556,049,180,418,211/138,295,139.80 - Step 6: Final answer
x = 61,868,039.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.