Finding the Fourth Proportional to 15,483,021.45, 21,366,920.84 and 8,514,086.14
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Solution
The fourth proportional to 15,483,021.45, 21,366,920.84 and 8,514,086.14 is: 11,749,632.02
Step by Step Solution
- Step 1: Write the proportion equation
15,483,021.45 : 21,366,920.84 = 8,514,086.14 : x - Step 2: Convert to fraction form
15,483,021.45/21,366,920.84 = 8,514,086.14/x - Step 3: Cross multiply
15,483,021.45x = 21,366,920.84 × 8,514,086.14 - Step 4: Simplify right side
15,483,021.45x = 181,919,804,562,459.38 - Step 5: Solve for x
x = 181,919,804,562,459.38/15,483,021.45 - Step 6: Final answer
x = 11,749,632.02
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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.