Finding the Fourth Proportional to 1,994,556,943.80, 2,991,835,415.70 and 540,534,367.80
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Solution
The fourth proportional to 1,994,556,943.80, 2,991,835,415.70 and 540,534,367.80 is: 810,801,551.70
Step by Step Solution
- Step 1: Write the proportion equation
1,994,556,943.80 : 2,991,835,415.70 = 540,534,367.80 : x - Step 2: Convert to fraction form
1,994,556,943.80/2,991,835,415.70 = 540,534,367.80/x - Step 3: Cross multiply
1,994,556,943.80x = 2,991,835,415.70 × 540,534,367.80 - Step 4: Simplify right side
1,994,556,943.80x = 1,617,189,864,987,049,472 - Step 5: Solve for x
x = 1,617,189,864,987,049,472/1,994,556,943.80 - Step 6: Final answer
x = 810,801,551.70
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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.