Finding the Fourth Proportional to 155,337,244.97, 214,369,942.76 and 84,777,380.81
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Solution
The fourth proportional to 155,337,244.97, 214,369,942.76 and 84,777,380.81 is: 116,995,265.86
Step by Step Solution
- Step 1: Write the proportion equation
155,337,244.97 : 214,369,942.76 = 84,777,380.81 : x - Step 2: Convert to fraction form
155,337,244.97/214,369,942.76 = 84,777,380.81/x - Step 3: Cross multiply
155,337,244.97x = 214,369,942.76 × 84,777,380.81 - Step 4: Simplify right side
155,337,244.97x = 18,173,722,272,891,404 - Step 5: Solve for x
x = 18,173,722,272,891,404/155,337,244.97 - Step 6: Final answer
x = 116,995,265.86
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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.