Finding the Fourth Proportional to 324,771,183.60, 487,156,775.40 and 221,459,053.20
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Solution
The fourth proportional to 324,771,183.60, 487,156,775.40 and 221,459,053.20 is: 332,188,579.80
Step by Step Solution
- Step 1: Write the proportion equation
324,771,183.60 : 487,156,775.40 = 221,459,053.20 : x - Step 2: Convert to fraction form
324,771,183.60/487,156,775.40 = 221,459,053.20/x - Step 3: Cross multiply
324,771,183.60x = 487,156,775.40 × 221,459,053.20 - Step 4: Simplify right side
324,771,183.60x = 107,885,278,240,049,040 - Step 5: Solve for x
x = 107,885,278,240,049,040/324,771,183.60 - Step 6: Final answer
x = 332,188,579.80
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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.