Finding the Fourth Proportional to 291,207,207.90, 436,810,811.85 and 264,847,734.30
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Solution
The fourth proportional to 291,207,207.90, 436,810,811.85 and 264,847,734.30 is: 397,271,601.45
Step by Step Solution
- Step 1: Write the proportion equation
291,207,207.90 : 436,810,811.85 = 264,847,734.30 : x - Step 2: Convert to fraction form
291,207,207.90/436,810,811.85 = 264,847,734.30/x - Step 3: Cross multiply
291,207,207.90x = 436,810,811.85 × 264,847,734.30 - Step 4: Simplify right side
291,207,207.90x = 115,688,353,836,216,096 - Step 5: Solve for x
x = 115,688,353,836,216,096/291,207,207.90 - Step 6: Final answer
x = 397,271,601.45
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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.