Finding the Fourth Proportional to 670,728,388.11, 1,006,201,782.12 and 198,075,239.87
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Solution
The fourth proportional to 670,728,388.11, 1,006,201,782.12 and 198,075,239.87 is: 297,145,108.03
Step by Step Solution
- Step 1: Write the proportion equation
670,728,388.11 : 1,006,201,782.12 = 198,075,239.87 : x - Step 2: Convert to fraction form
670,728,388.11/1,006,201,782.12 = 198,075,239.87/x - Step 3: Cross multiply
670,728,388.11x = 1,006,201,782.12 × 198,075,239.87 - Step 4: Simplify right side
670,728,388.11x = 199,303,659,345,633,152 - Step 5: Solve for x
x = 199,303,659,345,633,152/670,728,388.11 - Step 6: Final answer
x = 297,145,108.03
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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.