Finding the Fourth Proportional to 279,049,649.25, 385,125,185.21 and 160,018,822.65
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Solution
The fourth proportional to 279,049,649.25, 385,125,185.21 and 160,018,822.65 is: 220,847,002.94
Step by Step Solution
- Step 1: Write the proportion equation
279,049,649.25 : 385,125,185.21 = 160,018,822.65 : x - Step 2: Convert to fraction form
279,049,649.25/385,125,185.21 = 160,018,822.65/x - Step 3: Cross multiply
279,049,649.25x = 385,125,185.21 × 160,018,822.65 - Step 4: Simplify right side
279,049,649.25x = 61,627,278,709,367,296 - Step 5: Solve for x
x = 61,627,278,709,367,296/279,049,649.25 - Step 6: Final answer
x = 220,847,002.94
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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.