Finding the Fourth Proportional to 215,678,830.80, 323,518,246.20 and 134,049,493.20
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Solution
The fourth proportional to 215,678,830.80, 323,518,246.20 and 134,049,493.20 is: 201,074,239.80
Step by Step Solution
- Step 1: Write the proportion equation
215,678,830.80 : 323,518,246.20 = 134,049,493.20 : x - Step 2: Convert to fraction form
215,678,830.80/323,518,246.20 = 134,049,493.20/x - Step 3: Cross multiply
215,678,830.80x = 323,518,246.20 × 134,049,493.20 - Step 4: Simplify right side
215,678,830.80x = 43,367,456,944,062,824 - Step 5: Solve for x
x = 43,367,456,944,062,824/215,678,830.80 - Step 6: Final answer
x = 201,074,239.80
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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.