Finding the Fourth Proportional to 1,664,405,507.52, 2,496,296,131.92 and 835,136,490.99
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Solution
The fourth proportional to 1,664,405,507.52, 2,496,296,131.92 and 835,136,490.99 is: 1,252,548,121.64
Step by Step Solution
- Step 1: Write the proportion equation
1,664,405,507.52 : 2,496,296,131.92 = 835,136,490.99 : x - Step 2: Convert to fraction form
1,664,405,507.52/2,496,296,131.92 = 835,136,490.99/x - Step 3: Cross multiply
1,664,405,507.52x = 2,496,296,131.92 × 835,136,490.99 - Step 4: Simplify right side
1,664,405,507.52x = 2,084,747,992,083,579,136 - Step 5: Solve for x
x = 2,084,747,992,083,579,136/1,664,405,507.52 - Step 6: Final answer
x = 1,252,548,121.64
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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.