Finding the Fourth Proportional to 120,498,912.96, 166,368,579.66 and 92,571,885.24
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Solution
The fourth proportional to 120,498,912.96, 166,368,579.66 and 92,571,885.24 is: 127,810,721.99
Step by Step Solution
- Step 1: Write the proportion equation
120,498,912.96 : 166,368,579.66 = 92,571,885.24 : x - Step 2: Convert to fraction form
120,498,912.96/166,368,579.66 = 92,571,885.24/x - Step 3: Cross multiply
120,498,912.96x = 166,368,579.66 × 92,571,885.24 - Step 4: Simplify right side
120,498,912.96x = 15,401,053,063,827,316 - Step 5: Solve for x
x = 15,401,053,063,827,316/120,498,912.96 - Step 6: Final answer
x = 127,810,721.99
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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.