Finding the Fourth Proportional to 18,503,803.76, 25,537,920.17 and 10,661,814.09
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Solution
The fourth proportional to 18,503,803.76, 25,537,920.17 and 10,661,814.09 is: 14,714,842.45
Step by Step Solution
- Step 1: Write the proportion equation
18,503,803.76 : 25,537,920.17 = 10,661,814.09 : x - Step 2: Convert to fraction form
18,503,803.76/25,537,920.17 = 10,661,814.09/x - Step 3: Cross multiply
18,503,803.76x = 25,537,920.17 × 10,661,814.09 - Step 4: Simplify right side
18,503,803.76x = 272,280,557,044,492.12 - Step 5: Solve for x
x = 272,280,557,044,492.12/18,503,803.76 - Step 6: Final answer
x = 14,714,842.45
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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.