Finding the Fourth Proportional to 288,735,311.10, 433,102,966.65 and 256,990,568.70
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Solution
The fourth proportional to 288,735,311.10, 433,102,966.65 and 256,990,568.70 is: 385,485,853.05
Step by Step Solution
- Step 1: Write the proportion equation
288,735,311.10 : 433,102,966.65 = 256,990,568.70 : x - Step 2: Convert to fraction form
288,735,311.10/433,102,966.65 = 256,990,568.70/x - Step 3: Cross multiply
288,735,311.10x = 433,102,966.65 × 256,990,568.70 - Step 4: Simplify right side
288,735,311.10x = 111,303,377,705,040,624 - Step 5: Solve for x
x = 111,303,377,705,040,624/288,735,311.10 - Step 6: Final answer
x = 385,485,853.05
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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.