Finding the Fourth Proportional to 21,545,988.80, 32,336,608.80 and 21,378,027.20
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Solution
The fourth proportional to 21,545,988.80, 32,336,608.80 and 21,378,027.20 is: 32,084,529.00
Step by Step Solution
- Step 1: Write the proportion equation
21,545,988.80 : 32,336,608.80 = 21,378,027.20 : x - Step 2: Convert to fraction form
21,545,988.80/32,336,608.80 = 21,378,027.20/x - Step 3: Cross multiply
21,545,988.80x = 32,336,608.80 × 21,378,027.20 - Step 4: Simplify right side
21,545,988.80x = 691,292,902,482,159.38 - Step 5: Solve for x
x = 691,292,902,482,159.38/21,545,988.80 - Step 6: Final answer
x = 32,084,529.00
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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.