Finding the Fourth Proportional to 2,166,585,114.61, 2,989,844,753.92 and 1,274,608,241.65
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Solution
The fourth proportional to 2,166,585,114.61, 2,989,844,753.92 and 1,274,608,241.65 is: 1,758,934,250.45
Step by Step Solution
- Step 1: Write the proportion equation
2,166,585,114.61 : 2,989,844,753.92 = 1,274,608,241.65 : x - Step 2: Convert to fraction form
2,166,585,114.61/2,989,844,753.92 = 1,274,608,241.65/x - Step 3: Cross multiply
2,166,585,114.61x = 2,989,844,753.92 × 1,274,608,241.65 - Step 4: Simplify right side
2,166,585,114.61x = 3,810,880,764,600,448,512 - Step 5: Solve for x
x = 3,810,880,764,600,448,512/2,166,585,114.61 - Step 6: Final answer
x = 1,758,934,250.45
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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.