Finding the Fourth Proportional to 664,317,490.40, 996,476,235.60 and 358,207,474.40
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Solution
The fourth proportional to 664,317,490.40, 996,476,235.60 and 358,207,474.40 is: 537,311,211.60
Step by Step Solution
- Step 1: Write the proportion equation
664,317,490.40 : 996,476,235.60 = 358,207,474.40 : x - Step 2: Convert to fraction form
664,317,490.40/996,476,235.60 = 358,207,474.40/x - Step 3: Cross multiply
664,317,490.40x = 996,476,235.60 × 358,207,474.40 - Step 4: Simplify right side
664,317,490.40x = 356,945,235,653,895,360 - Step 5: Solve for x
x = 356,945,235,653,895,360/664,317,490.40 - Step 6: Final answer
x = 537,311,211.60
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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.