Finding the Fourth Proportional to 545,935,861.20, 818,903,791.80 and 239,825,845.20
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Solution
The fourth proportional to 545,935,861.20, 818,903,791.80 and 239,825,845.20 is: 359,738,767.80
Step by Step Solution
- Step 1: Write the proportion equation
545,935,861.20 : 818,903,791.80 = 239,825,845.20 : x - Step 2: Convert to fraction form
545,935,861.20/818,903,791.80 = 239,825,845.20/x - Step 3: Cross multiply
545,935,861.20x = 818,903,791.80 × 239,825,845.20 - Step 4: Simplify right side
545,935,861.20x = 196,394,294,005,919,808 - Step 5: Solve for x
x = 196,394,294,005,919,808/545,935,861.20 - Step 6: Final answer
x = 359,738,767.80
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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.