Finding the Fourth Proportional to 477,289,442.43, 658,716,770.18 and 289,112,214.98
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Solution
The fourth proportional to 477,289,442.43, 658,716,770.18 and 289,112,214.98 is: 399,009,589.45
Step by Step Solution
- Step 1: Write the proportion equation
477,289,442.43 : 658,716,770.18 = 289,112,214.98 : x - Step 2: Convert to fraction form
477,289,442.43/658,716,770.18 = 289,112,214.98/x - Step 3: Cross multiply
477,289,442.43x = 658,716,770.18 × 289,112,214.98 - Step 4: Simplify right side
477,289,442.43x = 190,443,064,471,211,424 - Step 5: Solve for x
x = 190,443,064,471,211,424/477,289,442.43 - Step 6: Final answer
x = 399,009,589.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.