Finding the Fourth Proportional to 21,603,339.09, 29,813,125.68 and 12,310,709.27
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Solution
The fourth proportional to 21,603,339.09, 29,813,125.68 and 12,310,709.27 is: 16,989,073.82
Step by Step Solution
- Step 1: Write the proportion equation
21,603,339.09 : 29,813,125.68 = 12,310,709.27 : x - Step 2: Convert to fraction form
21,603,339.09/29,813,125.68 = 12,310,709.27/x - Step 3: Cross multiply
21,603,339.09x = 29,813,125.68 × 12,310,709.27 - Step 4: Simplify right side
21,603,339.09x = 367,020,722,527,385.44 - Step 5: Solve for x
x = 367,020,722,527,385.44/21,603,339.09 - Step 6: Final answer
x = 16,989,073.82
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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.