Finding the Fourth Proportional to 442,868,415.80, 664,302,623.70 and 305,118,908.60
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Solution
The fourth proportional to 442,868,415.80, 664,302,623.70 and 305,118,908.60 is: 457,678,362.90
Step by Step Solution
- Step 1: Write the proportion equation
442,868,415.80 : 664,302,623.70 = 305,118,908.60 : x - Step 2: Convert to fraction form
442,868,415.80/664,302,623.70 = 305,118,908.60/x - Step 3: Cross multiply
442,868,415.80x = 664,302,623.70 × 305,118,908.60 - Step 4: Simplify right side
442,868,415.80x = 202,691,291,523,460,512 - Step 5: Solve for x
x = 202,691,291,523,460,512/442,868,415.80 - Step 6: Final answer
x = 457,678,362.90
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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.