Finding the Fourth Proportional to 699,438,773.87, 965,238,942.98 and 381,911,609.50
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Solution
The fourth proportional to 699,438,773.87, 965,238,942.98 and 381,911,609.50 is: 527,045,356.99
Step by Step Solution
- Step 1: Write the proportion equation
699,438,773.87 : 965,238,942.98 = 381,911,609.50 : x - Step 2: Convert to fraction form
699,438,773.87/965,238,942.98 = 381,911,609.50/x - Step 3: Cross multiply
699,438,773.87x = 965,238,942.98 × 381,911,609.50 - Step 4: Simplify right side
699,438,773.87x = 368,635,958,264,112,192 - Step 5: Solve for x
x = 368,635,958,264,112,192/699,438,773.87 - Step 6: Final answer
x = 527,045,356.99
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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.