Finding the Fourth Proportional to 290,416,178.20, 435,624,267.30 and 224,659,211.80
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Solution
The fourth proportional to 290,416,178.20, 435,624,267.30 and 224,659,211.80 is: 336,988,817.70
Step by Step Solution
- Step 1: Write the proportion equation
290,416,178.20 : 435,624,267.30 = 224,659,211.80 : x - Step 2: Convert to fraction form
290,416,178.20/435,624,267.30 = 224,659,211.80/x - Step 3: Cross multiply
290,416,178.20x = 435,624,267.30 × 224,659,211.80 - Step 4: Simplify right side
290,416,178.20x = 97,867,004,532,570,528 - Step 5: Solve for x
x = 97,867,004,532,570,528/290,416,178.20 - Step 6: Final answer
x = 336,988,817.70
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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.