Finding the Fourth Proportional to 20,189,580,976.80, 30,257,300,670.48 and 15,713,080,714.08
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Solution
The fourth proportional to 20,189,580,976.80, 30,257,300,670.48 and 15,713,080,714.08 is: 23,548,552,501.99
Step by Step Solution
- Step 1: Write the proportion equation
20,189,580,976.80 : 30,257,300,670.48 = 15,713,080,714.08 : x - Step 2: Convert to fraction form
20,189,580,976.80/30,257,300,670.48 = 15,713,080,714.08/x - Step 3: Cross multiply
20,189,580,976.80x = 30,257,300,670.48 × 15,713,080,714.08 - Step 4: Simplify right side
20,189,580,976.80x = 475,435,407,625,439,150,080 - Step 5: Solve for x
x = 475,435,407,625,439,150,080/20,189,580,976.80 - Step 6: Final answer
x = 23,548,552,501.99
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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.