Finding the Fourth Proportional to 20,616,773.21, 28,450,367.54 and 11,450,006.45
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Solution
The fourth proportional to 20,616,773.21, 28,450,367.54 and 11,450,006.45 is: 15,800,575.99
Step by Step Solution
- Step 1: Write the proportion equation
20,616,773.21 : 28,450,367.54 = 11,450,006.45 : x - Step 2: Convert to fraction form
20,616,773.21/28,450,367.54 = 11,450,006.45/x - Step 3: Cross multiply
20,616,773.21x = 28,450,367.54 × 11,450,006.45 - Step 4: Simplify right side
20,616,773.21x = 325,756,891,894,684.06 - Step 5: Solve for x
x = 325,756,891,894,684.06/20,616,773.21 - Step 6: Final answer
x = 15,800,575.99
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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.