Finding the Fourth Proportional to 2,649,438,207.80, 3,974,157,311.70 and 904,611,116.60
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Solution
The fourth proportional to 2,649,438,207.80, 3,974,157,311.70 and 904,611,116.60 is: 1,356,916,674.90
Step by Step Solution
- Step 1: Write the proportion equation
2,649,438,207.80 : 3,974,157,311.70 = 904,611,116.60 : x - Step 2: Convert to fraction form
2,649,438,207.80/3,974,157,311.70 = 904,611,116.60/x - Step 3: Cross multiply
2,649,438,207.80x = 3,974,157,311.70 × 904,611,116.60 - Step 4: Simplify right side
2,649,438,207.80x = 3,595,066,883,280,991,232 - Step 5: Solve for x
x = 3,595,066,883,280,991,232/2,649,438,207.80 - Step 6: Final answer
x = 1,356,916,674.90
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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.