Finding the Fourth Proportional to 86,672,971.64, 129,971,662.06 and 32,782,492.28
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Solution
The fourth proportional to 86,672,971.64, 129,971,662.06 and 32,782,492.28 is: 49,159,442.99
Step by Step Solution
- Step 1: Write the proportion equation
86,672,971.64 : 129,971,662.06 = 32,782,492.28 : x - Step 2: Convert to fraction form
86,672,971.64/129,971,662.06 = 32,782,492.28/x - Step 3: Cross multiply
86,672,971.64x = 129,971,662.06 × 32,782,492.28 - Step 4: Simplify right side
86,672,971.64x = 4,260,795,008,100,719 - Step 5: Solve for x
x = 4,260,795,008,100,719/86,672,971.64 - Step 6: Final answer
x = 49,159,442.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.