Finding the Fourth Proportional to 32,601,121.70, 48,901,682.55 and 21,121,996.10
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Solution
The fourth proportional to 32,601,121.70, 48,901,682.55 and 21,121,996.10 is: 31,682,994.15
Step by Step Solution
- Step 1: Write the proportion equation
32,601,121.70 : 48,901,682.55 = 21,121,996.10 : x - Step 2: Convert to fraction form
32,601,121.70/48,901,682.55 = 21,121,996.10/x - Step 3: Cross multiply
32,601,121.70x = 48,901,682.55 × 21,121,996.10 - Step 4: Simplify right side
32,601,121.70x = 1,032,901,148,104,538.12 - Step 5: Solve for x
x = 1,032,901,148,104,538.12/32,601,121.70 - Step 6: Final answer
x = 31,682,994.15
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.