Finding the Fourth Proportional to 398,630,771.80, 597,946,157.70 and 183,639,923.80
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Solution
The fourth proportional to 398,630,771.80, 597,946,157.70 and 183,639,923.80 is: 275,459,885.70
Step by Step Solution
- Step 1: Write the proportion equation
398,630,771.80 : 597,946,157.70 = 183,639,923.80 : x - Step 2: Convert to fraction form
398,630,771.80/597,946,157.70 = 183,639,923.80/x - Step 3: Cross multiply
398,630,771.80x = 597,946,157.70 × 183,639,923.80 - Step 4: Simplify right side
398,630,771.80x = 109,806,786,836,530,800 - Step 5: Solve for x
x = 109,806,786,836,530,800/398,630,771.80 - Step 6: Final answer
x = 275,459,885.70
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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.