Finding the Fourth Proportional to 708,544,080.80, 1,062,816,121.20 and 325,591,632.80
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Solution
The fourth proportional to 708,544,080.80, 1,062,816,121.20 and 325,591,632.80 is: 488,387,449.20
Step by Step Solution
- Step 1: Write the proportion equation
708,544,080.80 : 1,062,816,121.20 = 325,591,632.80 : x - Step 2: Convert to fraction form
708,544,080.80/1,062,816,121.20 = 325,591,632.80/x - Step 3: Cross multiply
708,544,080.80x = 1,062,816,121.20 × 325,591,632.80 - Step 4: Simplify right side
708,544,080.80x = 346,044,036,267,670,720 - Step 5: Solve for x
x = 346,044,036,267,670,720/708,544,080.80 - Step 6: Final answer
x = 488,387,449.20
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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.