Finding the Fourth Proportional to 31,183,515.30, 46,704,414.15 and 19,704,389.70
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Solution
The fourth proportional to 31,183,515.30, 46,704,414.15 and 19,704,389.70 is: 29,511,809.95
Step by Step Solution
- Step 1: Write the proportion equation
31,183,515.30 : 46,704,414.15 = 19,704,389.70 : x - Step 2: Convert to fraction form
31,183,515.30/46,704,414.15 = 19,704,389.70/x - Step 3: Cross multiply
31,183,515.30x = 46,704,414.15 × 19,704,389.70 - Step 4: Simplify right side
31,183,515.30x = 920,281,977,121,794.25 - Step 5: Solve for x
x = 920,281,977,121,794.25/31,183,515.30 - Step 6: Final answer
x = 29,511,809.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.