Finding the Fourth Proportional to 5,514,415.30, 7,607,805.69 and 3,420,289.09
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Solution
The fourth proportional to 5,514,415.30, 7,607,805.69 and 3,420,289.09 is: 4,718,704.23
Step by Step Solution
- Step 1: Write the proportion equation
5,514,415.30 : 7,607,805.69 = 3,420,289.09 : x - Step 2: Convert to fraction form
5,514,415.30/7,607,805.69 = 3,420,289.09/x - Step 3: Cross multiply
5,514,415.30x = 7,607,805.69 × 3,420,289.09 - Step 4: Simplify right side
5,514,415.30x = 26,020,894,800,346.92 - Step 5: Solve for x
x = 26,020,894,800,346.92/5,514,415.30 - Step 6: Final answer
x = 4,718,704.23
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1.5x scale
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.