Finding the Fourth Proportional to 6,321,343.23, 8,723,476.68 and 3,420,733.86
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Solution
The fourth proportional to 6,321,343.23, 8,723,476.68 and 3,420,733.86 is: 4,720,625.19
Step by Step Solution
- Step 1: Write the proportion equation
6,321,343.23 : 8,723,476.68 = 3,420,733.86 : x - Step 2: Convert to fraction form
6,321,343.23/8,723,476.68 = 3,420,733.86/x - Step 3: Cross multiply
6,321,343.23x = 8,723,476.68 × 3,420,733.86 - Step 4: Simplify right side
6,321,343.23x = 29,840,692,056,196.38 - Step 5: Solve for x
x = 29,840,692,056,196.38/6,321,343.23 - Step 6: Final answer
x = 4,720,625.19
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1.5x scale
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.