Finding the Fourth Proportional to 146,640,372.75, 202,120,636.50 and 142,758,888.75
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Solution
The fourth proportional to 146,640,372.75, 202,120,636.50 and 142,758,888.75 is: 196,770,622.71
Step by Step Solution
- Step 1: Write the proportion equation
146,640,372.75 : 202,120,636.50 = 142,758,888.75 : x - Step 2: Convert to fraction form
146,640,372.75/202,120,636.50 = 142,758,888.75/x - Step 3: Cross multiply
146,640,372.75x = 202,120,636.50 × 142,758,888.75 - Step 4: Simplify right side
146,640,372.75x = 28,854,517,460,182,688 - Step 5: Solve for x
x = 28,854,517,460,182,688/146,640,372.75 - Step 6: Final answer
x = 196,770,622.71
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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.