Finding the Fourth Proportional to 15,521,632.13, 21,420,514.32 and 8,646,117.23
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Solution
The fourth proportional to 15,521,632.13, 21,420,514.32 and 8,646,117.23 is: 11,932,010.52
Step by Step Solution
- Step 1: Write the proportion equation
15,521,632.13 : 21,420,514.32 = 8,646,117.23 : x - Step 2: Convert to fraction form
15,521,632.13/21,420,514.32 = 8,646,117.23/x - Step 3: Cross multiply
15,521,632.13x = 21,420,514.32 × 8,646,117.23 - Step 4: Simplify right side
15,521,632.13x = 185,204,277,937,613.75 - Step 5: Solve for x
x = 185,204,277,937,613.75/15,521,632.13 - Step 6: Final answer
x = 11,932,010.52
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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.