Finding the Fourth Proportional to 312,239,879.18, 430,891,538.97 and 171,088,672.11
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Solution
The fourth proportional to 312,239,879.18, 430,891,538.97 and 171,088,672.11 is: 236,102,644.61
Step by Step Solution
- Step 1: Write the proportion equation
312,239,879.18 : 430,891,538.97 = 171,088,672.11 : x - Step 2: Convert to fraction form
312,239,879.18/430,891,538.97 = 171,088,672.11/x - Step 3: Cross multiply
312,239,879.18x = 430,891,538.97 × 171,088,672.11 - Step 4: Simplify right side
312,239,879.18x = 73,720,661,225,811,632 - Step 5: Solve for x
x = 73,720,661,225,811,632/312,239,879.18 - Step 6: Final answer
x = 236,102,644.61
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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.