Finding the Fourth Proportional to 20,230,668.16, 27,920,879.04 and 13,267,204.11
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Solution
The fourth proportional to 20,230,668.16, 27,920,879.04 and 13,267,204.11 is: 18,310,418.53
Step by Step Solution
- Step 1: Write the proportion equation
20,230,668.16 : 27,920,879.04 = 13,267,204.11 : x - Step 2: Convert to fraction form
20,230,668.16/27,920,879.04 = 13,267,204.11/x - Step 3: Cross multiply
20,230,668.16x = 27,920,879.04 × 13,267,204.11 - Step 4: Simplify right side
20,230,668.16x = 370,432,001,154,300.81 - Step 5: Solve for x
x = 370,432,001,154,300.81/20,230,668.16 - Step 6: Final answer
x = 18,310,418.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.