Finding the Fourth Proportional to 5,715,823.48, 7,887,845.05 and 3,102,328.50
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Solution
The fourth proportional to 5,715,823.48, 7,887,845.05 and 3,102,328.50 is: 4,281,218.02
Step by Step Solution
- Step 1: Write the proportion equation
5,715,823.48 : 7,887,845.05 = 3,102,328.50 : x - Step 2: Convert to fraction form
5,715,823.48/7,887,845.05 = 3,102,328.50/x - Step 3: Cross multiply
5,715,823.48x = 7,887,845.05 × 3,102,328.50 - Step 4: Simplify right side
5,715,823.48x = 24,470,686,514,162.72 - Step 5: Solve for x
x = 24,470,686,514,162.72/5,715,823.48 - Step 6: Final answer
x = 4,281,218.02
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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.