Finding the Fourth Proportional to 2,557,199,039.58, 3,835,906,181.64 and 810,470,701.80
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Solution
The fourth proportional to 2,557,199,039.58, 3,835,906,181.64 and 810,470,701.80 is: 1,215,740,162.17
Step by Step Solution
- Step 1: Write the proportion equation
2,557,199,039.58 : 3,835,906,181.64 = 810,470,701.80 : x - Step 2: Convert to fraction form
2,557,199,039.58/3,835,906,181.64 = 810,470,701.80/x - Step 3: Cross multiply
2,557,199,039.58x = 3,835,906,181.64 × 810,470,701.80 - Step 4: Simplify right side
2,557,199,039.58x = 3,108,889,575,072,728,576 - Step 5: Solve for x
x = 3,108,889,575,072,728,576/2,557,199,039.58 - Step 6: Final answer
x = 1,215,740,162.17
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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.