Finding the Fourth Proportional to 716,917,080.80, 1,075,375,621.20 and 494,987,319.20
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Solution
The fourth proportional to 716,917,080.80, 1,075,375,621.20 and 494,987,319.20 is: 742,480,978.80
Step by Step Solution
- Step 1: Write the proportion equation
716,917,080.80 : 1,075,375,621.20 = 494,987,319.20 : x - Step 2: Convert to fraction form
716,917,080.80/1,075,375,621.20 = 494,987,319.20/x - Step 3: Cross multiply
716,917,080.80x = 1,075,375,621.20 × 494,987,319.20 - Step 4: Simplify right side
716,917,080.80x = 532,297,295,870,822,720 - Step 5: Solve for x
x = 532,297,295,870,822,720/716,917,080.80 - Step 6: Final answer
x = 742,480,978.80
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1.5x scale
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.