Finding the Fourth Proportional to 1,679,618,268.80, 2,519,427,403.20 and 1,068,909,891.20
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Solution
The fourth proportional to 1,679,618,268.80, 2,519,427,403.20 and 1,068,909,891.20 is: 1,603,364,836.80
Step by Step Solution
- Step 1: Write the proportion equation
1,679,618,268.80 : 2,519,427,403.20 = 1,068,909,891.20 : x - Step 2: Convert to fraction form
1,679,618,268.80/2,519,427,403.20 = 1,068,909,891.20/x - Step 3: Cross multiply
1,679,618,268.80x = 2,519,427,403.20 × 1,068,909,891.20 - Step 4: Simplify right side
1,679,618,268.80x = 2,693,040,871,440,810,496 - Step 5: Solve for x
x = 2,693,040,871,440,810,496/1,679,618,268.80 - Step 6: Final answer
x = 1,603,364,836.80
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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.