Finding the Fourth Proportional to 3,946,948.68, 5,446,945.64 and 2,228,128.68
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Solution
The fourth proportional to 3,946,948.68, 5,446,945.64 and 2,228,128.68 is: 3,074,905.90
Step by Step Solution
- Step 1: Write the proportion equation
3,946,948.68 : 5,446,945.64 = 2,228,128.68 : x - Step 2: Convert to fraction form
3,946,948.68/5,446,945.64 = 2,228,128.68/x - Step 3: Cross multiply
3,946,948.68x = 5,446,945.64 × 2,228,128.68 - Step 4: Simplify right side
3,946,948.68x = 12,136,495,798,884.96 - Step 5: Solve for x
x = 12,136,495,798,884.96/3,946,948.68 - Step 6: Final answer
x = 3,074,905.90
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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.