Finding the Fourth Proportional to 4,991,262.20, 6,887,941.80 and 2,699,422.88
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Solution
The fourth proportional to 4,991,262.20, 6,887,941.80 and 2,699,422.88 is: 3,725,203.55
Step by Step Solution
- Step 1: Write the proportion equation
4,991,262.20 : 6,887,941.80 = 2,699,422.88 : x - Step 2: Convert to fraction form
4,991,262.20/6,887,941.80 = 2,699,422.88/x - Step 3: Cross multiply
4,991,262.20x = 6,887,941.80 × 2,699,422.88 - Step 4: Simplify right side
4,991,262.20x = 18,593,467,691,028.38 - Step 5: Solve for x
x = 18,593,467,691,028.38/4,991,262.20 - Step 6: Final answer
x = 3,725,203.55
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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.