Finding the Fourth Proportional to 156,132,828.26, 215,561,240.24 and 100,474,950.09
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Solution
The fourth proportional to 156,132,828.26, 215,561,240.24 and 100,474,950.09 is: 138,718,455.92
Step by Step Solution
- Step 1: Write the proportion equation
156,132,828.26 : 215,561,240.24 = 100,474,950.09 : x - Step 2: Convert to fraction form
156,132,828.26/215,561,240.24 = 100,474,950.09/x - Step 3: Cross multiply
156,132,828.26x = 215,561,240.24 × 100,474,950.09 - Step 4: Simplify right side
156,132,828.26x = 21,658,504,853,950,128 - Step 5: Solve for x
x = 21,658,504,853,950,128/156,132,828.26 - Step 6: Final answer
x = 138,718,455.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.