Finding the Fourth Proportional to 1,240,278,964.12, 1,860,690,856.44 and 366,812,234.62
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Solution
The fourth proportional to 1,240,278,964.12, 1,860,690,856.44 and 366,812,234.62 is: 550,298,917.21
Step by Step Solution
- Step 1: Write the proportion equation
1,240,278,964.12 : 1,860,690,856.44 = 366,812,234.62 : x - Step 2: Convert to fraction form
1,240,278,964.12/1,860,690,856.44 = 366,812,234.62/x - Step 3: Cross multiply
1,240,278,964.12x = 1,860,690,856.44 × 366,812,234.62 - Step 4: Simplify right side
1,240,278,964.12x = 682,524,170,987,758,080 - Step 5: Solve for x
x = 682,524,170,987,758,080/1,240,278,964.12 - Step 6: Final answer
x = 550,298,917.21
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1.5x scale
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.