Finding the Fourth Proportional to 511,362,390.06, 705,679,793.82 and 276,413,053.68
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Solution
The fourth proportional to 511,362,390.06, 705,679,793.82 and 276,413,053.68 is: 381,449,849.50
Step by Step Solution
- Step 1: Write the proportion equation
511,362,390.06 : 705,679,793.82 = 276,413,053.68 : x - Step 2: Convert to fraction form
511,362,390.06/705,679,793.82 = 276,413,053.68/x - Step 3: Cross multiply
511,362,390.06x = 705,679,793.82 × 276,413,053.68 - Step 4: Simplify right side
511,362,390.06x = 195,059,106,730,059,008 - Step 5: Solve for x
x = 195,059,106,730,059,008/511,362,390.06 - Step 6: Final answer
x = 381,449,849.50
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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.