Finding the Fourth Proportional to 380,958,528.70, 571,437,793.05 and 122,199,905.80
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Solution
The fourth proportional to 380,958,528.70, 571,437,793.05 and 122,199,905.80 is: 183,299,858.70
Step by Step Solution
- Step 1: Write the proportion equation
380,958,528.70 : 571,437,793.05 = 122,199,905.80 : x - Step 2: Convert to fraction form
380,958,528.70/571,437,793.05 = 122,199,905.80/x - Step 3: Cross multiply
380,958,528.70x = 571,437,793.05 × 122,199,905.80 - Step 4: Simplify right side
380,958,528.70x = 69,829,644,481,269,888 - Step 5: Solve for x
x = 69,829,644,481,269,888/380,958,528.70 - Step 6: Final answer
x = 183,299,858.70
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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.