Finding the Fourth Proportional to 218,757,951.20, 328,112,043.60 and 57,216,216.80
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Solution
The fourth proportional to 218,757,951.20, 328,112,043.60 and 57,216,216.80 is: 85,817,816.99
Step by Step Solution
- Step 1: Write the proportion equation
218,757,951.20 : 328,112,043.60 = 57,216,216.80 : x - Step 2: Convert to fraction form
218,757,951.20/328,112,043.60 = 57,216,216.80/x - Step 3: Cross multiply
218,757,951.20x = 328,112,043.60 × 57,216,216.80 - Step 4: Simplify right side
218,757,951.20x = 18,773,329,821,308,652 - Step 5: Solve for x
x = 18,773,329,821,308,652/218,757,951.20 - Step 6: Final answer
x = 85,817,816.99
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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.