Finding the Fourth Proportional to 7,380,272.80, 11,066,472.60 and 3,115,622.80
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Solution
The fourth proportional to 7,380,272.80, 11,066,472.60 and 3,115,622.80 is: 4,671,772.34
Step by Step Solution
- Step 1: Write the proportion equation
7,380,272.80 : 11,066,472.60 = 3,115,622.80 : x - Step 2: Convert to fraction form
7,380,272.80/11,066,472.60 = 3,115,622.80/x - Step 3: Cross multiply
7,380,272.80x = 11,066,472.60 × 3,115,622.80 - Step 4: Simplify right side
7,380,272.80x = 34,478,954,348,135.28 - Step 5: Solve for x
x = 34,478,954,348,135.28/7,380,272.80 - Step 6: Final answer
x = 4,671,772.34
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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.