Finding the Fourth Proportional to 1,651,486,280.40, 2,477,229,420.60 and 669,383,312.40
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Solution
The fourth proportional to 1,651,486,280.40, 2,477,229,420.60 and 669,383,312.40 is: 1,004,074,968.60
Step by Step Solution
- Step 1: Write the proportion equation
1,651,486,280.40 : 2,477,229,420.60 = 669,383,312.40 : x - Step 2: Convert to fraction form
1,651,486,280.40/2,477,229,420.60 = 669,383,312.40/x - Step 3: Cross multiply
1,651,486,280.40x = 2,477,229,420.60 × 669,383,312.40 - Step 4: Simplify right side
1,651,486,280.40x = 1,658,216,035,135,960,576 - Step 5: Solve for x
x = 1,658,216,035,135,960,576/1,651,486,280.40 - Step 6: Final answer
x = 1,004,074,968.60
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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.