Finding the Fourth Proportional to 85,640,356.08, 118,185,450.84 and 48,470,635.44
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Solution
The fourth proportional to 85,640,356.08, 118,185,450.84 and 48,470,635.44 is: 66,890,472.72
Step by Step Solution
- Step 1: Write the proportion equation
85,640,356.08 : 118,185,450.84 = 48,470,635.44 : x - Step 2: Convert to fraction form
85,640,356.08/118,185,450.84 = 48,470,635.44/x - Step 3: Cross multiply
85,640,356.08x = 118,185,450.84 × 48,470,635.44 - Step 4: Simplify right side
85,640,356.08x = 5,728,523,901,977,682 - Step 5: Solve for x
x = 5,728,523,901,977,682/85,640,356.08 - Step 6: Final answer
x = 66,890,472.72
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.