Finding the Fourth Proportional to 120,296,169.84, 166,008,837.24 and 65,292,037.68
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Solution
The fourth proportional to 120,296,169.84, 166,008,837.24 and 65,292,037.68 is: 90,103,078.68
Step by Step Solution
- Step 1: Write the proportion equation
120,296,169.84 : 166,008,837.24 = 65,292,037.68 : x - Step 2: Convert to fraction form
120,296,169.84/166,008,837.24 = 65,292,037.68/x - Step 3: Cross multiply
120,296,169.84x = 166,008,837.24 × 65,292,037.68 - Step 4: Simplify right side
120,296,169.84x = 10,839,055,256,287,068 - Step 5: Solve for x
x = 10,839,055,256,287,068/120,296,169.84 - Step 6: Final answer
x = 90,103,078.68
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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.