Finding the Fourth Proportional to 19,809,905.70, 29,697,578.55 and 7,687,640.10
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Solution
The fourth proportional to 19,809,905.70, 29,697,578.55 and 7,687,640.10 is: 11,524,754.29
Step by Step Solution
- Step 1: Write the proportion equation
19,809,905.70 : 29,697,578.55 = 7,687,640.10 : x - Step 2: Convert to fraction form
19,809,905.70/29,697,578.55 = 7,687,640.10/x - Step 3: Cross multiply
19,809,905.70x = 29,697,578.55 × 7,687,640.10 - Step 4: Simplify right side
19,809,905.70x = 228,304,295,733,879.84 - Step 5: Solve for x
x = 228,304,295,733,879.84/19,809,905.70 - Step 6: Final answer
x = 11,524,754.29
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.