Finding the Fourth Proportional to 2,649,373,311.40, 3,656,306,790.81 and 1,520,390,661.46
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Solution
The fourth proportional to 2,649,373,311.40, 3,656,306,790.81 and 1,520,390,661.46 is: 2,098,237,600.67
Step by Step Solution
- Step 1: Write the proportion equation
2,649,373,311.40 : 3,656,306,790.81 = 1,520,390,661.46 : x - Step 2: Convert to fraction form
2,649,373,311.40/3,656,306,790.81 = 1,520,390,661.46/x - Step 3: Cross multiply
2,649,373,311.40x = 3,656,306,790.81 × 1,520,390,661.46 - Step 4: Simplify right side
2,649,373,311.40x = 5,559,014,700,180,305,920 - Step 5: Solve for x
x = 5,559,014,700,180,305,920/2,649,373,311.40 - Step 6: Final answer
x = 2,098,237,600.67
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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.