Finding the Fourth Proportional to 36,112,939.20, 49,826,215.80 and 21,416,386.68
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Solution
The fourth proportional to 36,112,939.20, 49,826,215.80 and 21,416,386.68 is: 29,548,896.55
Step by Step Solution
- Step 1: Write the proportion equation
36,112,939.20 : 49,826,215.80 = 21,416,386.68 : x - Step 2: Convert to fraction form
36,112,939.20/49,826,215.80 = 21,416,386.68/x - Step 3: Cross multiply
36,112,939.20x = 49,826,215.80 × 21,416,386.68 - Step 4: Simplify right side
36,112,939.20x = 1,067,097,504,373,925.50 - Step 5: Solve for x
x = 1,067,097,504,373,925.50/36,112,939.20 - Step 6: Final answer
x = 29,548,896.55
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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.