Finding the Fourth Proportional to 8,321,887,018.80, 12,482,830,528.20 and 3,418,080,145.20
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Solution
The fourth proportional to 8,321,887,018.80, 12,482,830,528.20 and 3,418,080,145.20 is: 5,127,120,217.80
Step by Step Solution
- Step 1: Write the proportion equation
8,321,887,018.80 : 12,482,830,528.20 = 3,418,080,145.20 : x - Step 2: Convert to fraction form
8,321,887,018.80/12,482,830,528.20 = 3,418,080,145.20/x - Step 3: Cross multiply
8,321,887,018.80x = 12,482,830,528.20 × 3,418,080,145.20 - Step 4: Simplify right side
8,321,887,018.80x = 42,667,315,184,336,846,848 - Step 5: Solve for x
x = 42,667,315,184,336,846,848/8,321,887,018.80 - Step 6: Final answer
x = 5,127,120,217.80
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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.