Finding the Fourth Proportional to 204,310,245.90, 306,465,368.85 and 135,931,212.30
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Solution
The fourth proportional to 204,310,245.90, 306,465,368.85 and 135,931,212.30 is: 203,896,818.45
Step by Step Solution
- Step 1: Write the proportion equation
204,310,245.90 : 306,465,368.85 = 135,931,212.30 : x - Step 2: Convert to fraction form
204,310,245.90/306,465,368.85 = 135,931,212.30/x - Step 3: Cross multiply
204,310,245.90x = 306,465,368.85 × 135,931,212.30 - Step 4: Simplify right side
204,310,245.90x = 41,658,209,115,747,160 - Step 5: Solve for x
x = 41,658,209,115,747,160/204,310,245.90 - Step 6: Final answer
x = 203,896,818.45
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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.