Finding the Fourth Proportional to 156,195,529.31, 215,545,163.67 and 85,628,726.62
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Solution
The fourth proportional to 156,195,529.31, 215,545,163.67 and 85,628,726.62 is: 118,165,084.33
Step by Step Solution
- Step 1: Write the proportion equation
156,195,529.31 : 215,545,163.67 = 85,628,726.62 : x - Step 2: Convert to fraction form
156,195,529.31/215,545,163.67 = 85,628,726.62/x - Step 3: Cross multiply
156,195,529.31x = 215,545,163.67 × 85,628,726.62 - Step 4: Simplify right side
156,195,529.31x = 18,456,857,893,622,724 - Step 5: Solve for x
x = 18,456,857,893,622,724/156,195,529.31 - Step 6: Final answer
x = 118,165,084.33
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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.