Finding the Fourth Proportional to 4,081,605.40, 6,115,409.70 and 2,660,930.20
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Solution
The fourth proportional to 4,081,605.40, 6,115,409.70 and 2,660,930.20 is: 3,986,832.82
Step by Step Solution
- Step 1: Write the proportion equation
4,081,605.40 : 6,115,409.70 = 2,660,930.20 : x - Step 2: Convert to fraction form
4,081,605.40/6,115,409.70 = 2,660,930.20/x - Step 3: Cross multiply
4,081,605.40x = 6,115,409.70 × 2,660,930.20 - Step 4: Simplify right side
4,081,605.40x = 16,272,678,356,102.94 - Step 5: Solve for x
x = 16,272,678,356,102.94/4,081,605.40 - Step 6: Final answer
x = 3,986,832.82
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1.5x scale
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.