Finding the Fourth Proportional to 73,144,446.30, 109,716,669.45 and 66,448,289.70
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Solution
The fourth proportional to 73,144,446.30, 109,716,669.45 and 66,448,289.70 is: 99,672,434.55
Step by Step Solution
- Step 1: Write the proportion equation
73,144,446.30 : 109,716,669.45 = 66,448,289.70 : x - Step 2: Convert to fraction form
73,144,446.30/109,716,669.45 = 66,448,289.70/x - Step 3: Cross multiply
73,144,446.30x = 109,716,669.45 × 66,448,289.70 - Step 4: Simplify right side
73,144,446.30x = 7,290,485,036,532,740 - Step 5: Solve for x
x = 7,290,485,036,532,740/73,144,446.30 - Step 6: Final answer
x = 99,672,434.55
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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.