Finding the Fourth Proportional to 243,219,324.98, 335,642,992.13 and 131,710,358.05
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Solution
The fourth proportional to 243,219,324.98, 335,642,992.13 and 131,710,358.05 is: 181,760,469.38
Step by Step Solution
- Step 1: Write the proportion equation
243,219,324.98 : 335,642,992.13 = 131,710,358.05 : x - Step 2: Convert to fraction form
243,219,324.98/335,642,992.13 = 131,710,358.05/x - Step 3: Cross multiply
243,219,324.98x = 335,642,992.13 × 131,710,358.05 - Step 4: Simplify right side
243,219,324.98x = 44,207,658,669,905,800 - Step 5: Solve for x
x = 44,207,658,669,905,800/243,219,324.98 - Step 6: Final answer
x = 181,760,469.38
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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.