Finding the Fourth Proportional to 445,885,087.80, 668,827,631.70 and 343,848,415.80
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Solution
The fourth proportional to 445,885,087.80, 668,827,631.70 and 343,848,415.80 is: 515,772,623.70
Step by Step Solution
- Step 1: Write the proportion equation
445,885,087.80 : 668,827,631.70 = 343,848,415.80 : x - Step 2: Convert to fraction form
445,885,087.80/668,827,631.70 = 343,848,415.80/x - Step 3: Cross multiply
445,885,087.80x = 668,827,631.70 × 343,848,415.80 - Step 4: Simplify right side
445,885,087.80x = 229,975,321,603,310,880 - Step 5: Solve for x
x = 229,975,321,603,310,880/445,885,087.80 - Step 6: Final answer
x = 515,772,623.70
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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.