Finding the Fourth Proportional to 1,669,021,765.20, 2,505,180,330.36 and 1,253,051,799.12
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Solution
The fourth proportional to 1,669,021,765.20, 2,505,180,330.36 and 1,253,051,799.12 is: 1,880,814,729.64
Step by Step Solution
- Step 1: Write the proportion equation
1,669,021,765.20 : 2,505,180,330.36 = 1,253,051,799.12 : x - Step 2: Convert to fraction form
1,669,021,765.20/2,505,180,330.36 = 1,253,051,799.12/x - Step 3: Cross multiply
1,669,021,765.20x = 2,505,180,330.36 × 1,253,051,799.12 - Step 4: Simplify right side
1,669,021,765.20x = 3,139,120,720,077,634,048 - Step 5: Solve for x
x = 3,139,120,720,077,634,048/1,669,021,765.20 - Step 6: Final answer
x = 1,880,814,729.64
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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.