Finding the Fourth Proportional to 8,876,941.70, 12,249,481.84 and 5,438,715.26
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Solution
The fourth proportional to 8,876,941.70, 12,249,481.84 and 5,438,715.26 is: 7,504,999.58
Step by Step Solution
- Step 1: Write the proportion equation
8,876,941.70 : 12,249,481.84 = 5,438,715.26 : x - Step 2: Convert to fraction form
8,876,941.70/12,249,481.84 = 5,438,715.26/x - Step 3: Cross multiply
8,876,941.70x = 12,249,481.84 × 5,438,715.26 - Step 4: Simplify right side
8,876,941.70x = 66,621,443,735,456.68 - Step 5: Solve for x
x = 66,621,443,735,456.68/8,876,941.70 - Step 6: Final answer
x = 7,504,999.58
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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.