Finding the Fourth Proportional to 396,473,234.51, 593,436,387.18 and 211,778,890.22
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Solution
The fourth proportional to 396,473,234.51, 593,436,387.18 and 211,778,890.22 is: 316,988,105.51
Step by Step Solution
- Step 1: Write the proportion equation
396,473,234.51 : 593,436,387.18 = 211,778,890.22 : x - Step 2: Convert to fraction form
396,473,234.51/593,436,387.18 = 211,778,890.22/x - Step 3: Cross multiply
396,473,234.51x = 593,436,387.18 × 211,778,890.22 - Step 4: Simplify right side
396,473,234.51x = 125,677,299,493,146,624 - Step 5: Solve for x
x = 125,677,299,493,146,624/396,473,234.51 - Step 6: Final answer
x = 316,988,105.51
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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.