Finding the Fourth Proportional to 813,949,858.62, 1,221,469,037.46 and 347,720,239.26
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Solution
The fourth proportional to 813,949,858.62, 1,221,469,037.46 and 347,720,239.26 is: 521,812,862.86
Step by Step Solution
- Step 1: Write the proportion equation
813,949,858.62 : 1,221,469,037.46 = 347,720,239.26 : x - Step 2: Convert to fraction form
813,949,858.62/1,221,469,037.46 = 347,720,239.26/x - Step 3: Cross multiply
813,949,858.62x = 1,221,469,037.46 × 347,720,239.26 - Step 4: Simplify right side
813,949,858.62x = 424,729,505,954,273,088 - Step 5: Solve for x
x = 424,729,505,954,273,088/813,949,858.62 - Step 6: Final answer
x = 521,812,862.86
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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.