Finding the Fourth Proportional to 427,644,390.12, 590,149,234.28 and 232,074,102.12
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Solution
The fourth proportional to 427,644,390.12, 590,149,234.28 and 232,074,102.12 is: 320,262,247.85
Step by Step Solution
- Step 1: Write the proportion equation
427,644,390.12 : 590,149,234.28 = 232,074,102.12 : x - Step 2: Convert to fraction form
427,644,390.12/590,149,234.28 = 232,074,102.12/x - Step 3: Cross multiply
427,644,390.12x = 590,149,234.28 × 232,074,102.12 - Step 4: Simplify right side
427,644,390.12x = 136,958,353,662,336,528 - Step 5: Solve for x
x = 136,958,353,662,336,528/427,644,390.12 - Step 6: Final answer
x = 320,262,247.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.