Finding the Fourth Proportional to 155,092,361.57, 214,026,812.21 and 85,477,576.31
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Solution
The fourth proportional to 155,092,361.57, 214,026,812.21 and 85,477,576.31 is: 117,958,698.85
Step by Step Solution
- Step 1: Write the proportion equation
155,092,361.57 : 214,026,812.21 = 85,477,576.31 : x - Step 2: Convert to fraction form
155,092,361.57/214,026,812.21 = 85,477,576.31/x - Step 3: Cross multiply
155,092,361.57x = 214,026,812.21 × 85,477,576.31 - Step 4: Simplify right side
155,092,361.57x = 18,294,493,171,996,184 - Step 5: Solve for x
x = 18,294,493,171,996,184/155,092,361.57 - Step 6: Final answer
x = 117,958,698.85
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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.