Finding the Fourth Proportional to 8,985,491.12, 12,398,543.88 and 5,118,087.44
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Solution
The fourth proportional to 8,985,491.12, 12,398,543.88 and 5,118,087.44 is: 7,062,143.95
Step by Step Solution
- Step 1: Write the proportion equation
8,985,491.12 : 12,398,543.88 = 5,118,087.44 : x - Step 2: Convert to fraction form
8,985,491.12/12,398,543.88 = 5,118,087.44/x - Step 3: Cross multiply
8,985,491.12x = 12,398,543.88 × 5,118,087.44 - Step 4: Simplify right side
8,985,491.12x = 63,456,831,706,516.88 - Step 5: Solve for x
x = 63,456,831,706,516.88/8,985,491.12 - Step 6: Final answer
x = 7,062,143.95
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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.