Finding the Fourth Proportional to 149,471,900.45, 224,207,850.68 and 128,665,985.30
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Solution
The fourth proportional to 149,471,900.45, 224,207,850.68 and 128,665,985.30 is: 192,998,977.95
Step by Step Solution
- Step 1: Write the proportion equation
149,471,900.45 : 224,207,850.68 = 128,665,985.30 : x - Step 2: Convert to fraction form
149,471,900.45/224,207,850.68 = 128,665,985.30/x - Step 3: Cross multiply
149,471,900.45x = 224,207,850.68 × 128,665,985.30 - Step 4: Simplify right side
149,471,900.45x = 28,847,924,019,737,476 - Step 5: Solve for x
x = 28,847,924,019,737,476/149,471,900.45 - Step 6: Final answer
x = 192,998,977.95
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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.