Finding the Fourth Proportional to 467,867,578.68, 645,657,414.80 and 256,187,797.38
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Solution
The fourth proportional to 467,867,578.68, 645,657,414.80 and 256,187,797.38 is: 353,539,245.92
Step by Step Solution
- Step 1: Write the proportion equation
467,867,578.68 : 645,657,414.80 = 256,187,797.38 : x - Step 2: Convert to fraction form
467,867,578.68/645,657,414.80 = 256,187,797.38/x - Step 3: Cross multiply
467,867,578.68x = 645,657,414.80 × 256,187,797.38 - Step 4: Simplify right side
467,867,578.68x = 165,409,550,958,396,064 - Step 5: Solve for x
x = 165,409,550,958,396,064/467,867,578.68 - Step 6: Final answer
x = 353,539,245.92
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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.