Finding the Fourth Proportional to 1,647,987,759.68, 2,471,488,579.96 and 542,388,532.10
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Solution
The fourth proportional to 1,647,987,759.68, 2,471,488,579.96 and 542,388,532.10 is: 813,420,521.54
Step by Step Solution
- Step 1: Write the proportion equation
1,647,987,759.68 : 2,471,488,579.96 = 542,388,532.10 : x - Step 2: Convert to fraction form
1,647,987,759.68/2,471,488,579.96 = 542,388,532.10/x - Step 3: Cross multiply
1,647,987,759.68x = 2,471,488,579.96 × 542,388,532.10 - Step 4: Simplify right side
1,647,987,759.68x = 1,340,507,062,972,704,512 - Step 5: Solve for x
x = 1,340,507,062,972,704,512/1,647,987,759.68 - Step 6: Final answer
x = 813,420,521.54
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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.