Finding the Fourth Proportional to 3,650,831,989.20, 5,476,247,983.80 and 2,199,643,765.20
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Solution
The fourth proportional to 3,650,831,989.20, 5,476,247,983.80 and 2,199,643,765.20 is: 3,299,465,647.80
Step by Step Solution
- Step 1: Write the proportion equation
3,650,831,989.20 : 5,476,247,983.80 = 2,199,643,765.20 : x - Step 2: Convert to fraction form
3,650,831,989.20/5,476,247,983.80 = 2,199,643,765.20/x - Step 3: Cross multiply
3,650,831,989.20x = 5,476,247,983.80 × 2,199,643,765.20 - Step 4: Simplify right side
3,650,831,989.20x = 12,045,794,734,254,739,456 - Step 5: Solve for x
x = 12,045,794,734,254,739,456/3,650,831,989.20 - Step 6: Final answer
x = 3,299,465,647.80
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1.5x scale
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.