Finding the Fourth Proportional to 664,362,078.30, 996,543,117.45 and 276,941,589.30
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Solution
The fourth proportional to 664,362,078.30, 996,543,117.45 and 276,941,589.30 is: 415,412,383.95
Step by Step Solution
- Step 1: Write the proportion equation
664,362,078.30 : 996,543,117.45 = 276,941,589.30 : x - Step 2: Convert to fraction form
664,362,078.30/996,543,117.45 = 276,941,589.30/x - Step 3: Cross multiply
664,362,078.30x = 996,543,117.45 × 276,941,589.30 - Step 4: Simplify right side
664,362,078.30x = 275,984,234,752,579,584 - Step 5: Solve for x
x = 275,984,234,752,579,584/664,362,078.30 - Step 6: Final answer
x = 415,412,383.95
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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.