Finding the Fourth Proportional to 996,530,717.85, 1,494,790,639.35 and 406,318,641.81
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Solution
The fourth proportional to 996,530,717.85, 1,494,790,639.35 and 406,318,641.81 is: 609,475,745.70
Step by Step Solution
- Step 1: Write the proportion equation
996,530,717.85 : 1,494,790,639.35 = 406,318,641.81 : x - Step 2: Convert to fraction form
996,530,717.85/1,494,790,639.35 = 406,318,641.81/x - Step 3: Cross multiply
996,530,717.85x = 1,494,790,639.35 × 406,318,641.81 - Step 4: Simplify right side
996,530,717.85x = 607,361,302,370,993,536 - Step 5: Solve for x
x = 607,361,302,370,993,536/996,530,717.85 - Step 6: Final answer
x = 609,475,745.70
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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.