Finding the Fourth Proportional to 511,362,362.99, 705,679,756.56 and 276,413,026.70
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Solution
The fourth proportional to 511,362,362.99, 705,679,756.56 and 276,413,026.70 is: 381,449,812.32
Step by Step Solution
- Step 1: Write the proportion equation
511,362,362.99 : 705,679,756.56 = 276,413,026.70 : x - Step 2: Convert to fraction form
511,362,362.99/705,679,756.56 = 276,413,026.70/x - Step 3: Cross multiply
511,362,362.99x = 705,679,756.56 × 276,413,026.70 - Step 4: Simplify right side
511,362,362.99x = 195,059,077,393,432,960 - Step 5: Solve for x
x = 195,059,077,393,432,960/511,362,362.99 - Step 6: Final answer
x = 381,449,812.32
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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.