Finding the Fourth Proportional to 480,654,844.80, 720,940,276.80 and 157,538,716.80
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Solution
The fourth proportional to 480,654,844.80, 720,940,276.80 and 157,538,716.80 is: 236,294,312.49
Step by Step Solution
- Step 1: Write the proportion equation
480,654,844.80 : 720,940,276.80 = 157,538,716.80 : x - Step 2: Convert to fraction form
480,654,844.80/720,940,276.80 = 157,538,716.80/x - Step 3: Cross multiply
480,654,844.80x = 720,940,276.80 × 157,538,716.80 - Step 4: Simplify right side
480,654,844.80x = 113,576,006,096,508,816 - Step 5: Solve for x
x = 113,576,006,096,508,816/480,654,844.80 - Step 6: Final answer
x = 236,294,312.49
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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.