Finding the Fourth Proportional to 829,431,825.99, 1,244,139,217.66 and 479,455,205.70
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Solution
The fourth proportional to 829,431,825.99, 1,244,139,217.66 and 479,455,205.70 is: 719,177,882.77
Step by Step Solution
- Step 1: Write the proportion equation
829,431,825.99 : 1,244,139,217.66 = 479,455,205.70 : x - Step 2: Convert to fraction form
829,431,825.99/1,244,139,217.66 = 479,455,205.70/x - Step 3: Cross multiply
829,431,825.99x = 1,244,139,217.66 × 479,455,205.70 - Step 4: Simplify right side
829,431,825.99x = 596,509,024,520,215,040 - Step 5: Solve for x
x = 596,509,024,520,215,040/829,431,825.99 - Step 6: Final answer
x = 719,177,882.77
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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.