Finding the Fourth Proportional to 7,939,825,913.64, 11,911,515,064.38 and 2,419,515,987.24
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Solution
The fourth proportional to 7,939,825,913.64, 11,911,515,064.38 and 2,419,515,987.24 is: 3,629,815,243.30
Step by Step Solution
- Step 1: Write the proportion equation
7,939,825,913.64 : 11,911,515,064.38 = 2,419,515,987.24 : x - Step 2: Convert to fraction form
7,939,825,913.64/11,911,515,064.38 = 2,419,515,987.24/x - Step 3: Cross multiply
7,939,825,913.64x = 11,911,515,064.38 × 2,419,515,987.24 - Step 4: Simplify right side
7,939,825,913.64x = 28,820,101,130,517,504,000 - Step 5: Solve for x
x = 28,820,101,130,517,504,000/7,939,825,913.64 - Step 6: Final answer
x = 3,629,815,243.30
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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.