Finding the Fourth Proportional to 87,253,482.11, 130,879,102.10 and 28,987,951.63
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Solution
The fourth proportional to 87,253,482.11, 130,879,102.10 and 28,987,951.63 is: 43,481,554.99
Step by Step Solution
- Step 1: Write the proportion equation
87,253,482.11 : 130,879,102.10 = 28,987,951.63 : x - Step 2: Convert to fraction form
87,253,482.11/130,879,102.10 = 28,987,951.63/x - Step 3: Cross multiply
87,253,482.11x = 130,879,102.10 × 28,987,951.63 - Step 4: Simplify right side
87,253,482.11x = 3,793,917,080,253,296 - Step 5: Solve for x
x = 3,793,917,080,253,296/87,253,482.11 - Step 6: Final answer
x = 43,481,554.99
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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.