Finding the Fourth Proportional to 1,816,701,163.20, 2,726,327,203.20 and 782,304,400.80
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Solution
The fourth proportional to 1,816,701,163.20, 2,726,327,203.20 and 782,304,400.80 is: 1,174,005,836.67
Step by Step Solution
- Step 1: Write the proportion equation
1,816,701,163.20 : 2,726,327,203.20 = 782,304,400.80 : x - Step 2: Convert to fraction form
1,816,701,163.20/2,726,327,203.20 = 782,304,400.80/x - Step 3: Cross multiply
1,816,701,163.20x = 2,726,327,203.20 × 782,304,400.80 - Step 4: Simplify right side
1,816,701,163.20x = 2,132,817,769,084,115,456 - Step 5: Solve for x
x = 2,132,817,769,084,115,456/1,816,701,163.20 - Step 6: Final answer
x = 1,174,005,836.67
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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.