Finding the Fourth Proportional to 848,869,971.62, 1,171,205,321.42 and 509,690,350.49
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Solution
The fourth proportional to 848,869,971.62, 1,171,205,321.42 and 509,690,350.49 is: 703,231,437.94
Step by Step Solution
- Step 1: Write the proportion equation
848,869,971.62 : 1,171,205,321.42 = 509,690,350.49 : x - Step 2: Convert to fraction form
848,869,971.62/1,171,205,321.42 = 509,690,350.49/x - Step 3: Cross multiply
848,869,971.62x = 1,171,205,321.42 × 509,690,350.49 - Step 4: Simplify right side
848,869,971.62x = 596,952,050,765,731,072 - Step 5: Solve for x
x = 596,952,050,765,731,072/848,869,971.62 - Step 6: Final answer
x = 703,231,437.94
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1.5x scale
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.