Finding the Fourth Proportional to 12,206,908.86, 16,859,514.99 and 8,039,224.23
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Solution
The fourth proportional to 12,206,908.86, 16,859,514.99 and 8,039,224.23 is: 11,103,336.89
Step by Step Solution
- Step 1: Write the proportion equation
12,206,908.86 : 16,859,514.99 = 8,039,224.23 : x - Step 2: Convert to fraction form
12,206,908.86/16,859,514.99 = 8,039,224.23/x - Step 3: Cross multiply
12,206,908.86x = 16,859,514.99 × 8,039,224.23 - Step 4: Simplify right side
12,206,908.86x = 135,537,421,413,656.20 - Step 5: Solve for x
x = 135,537,421,413,656.20/12,206,908.86 - Step 6: Final answer
x = 11,103,336.89
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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.