Finding the Fourth Proportional to 521,469,716.22, 782,204,854.71 and 193,902,666.05
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Solution
The fourth proportional to 521,469,716.22, 782,204,854.71 and 193,902,666.05 is: 290,854,103.32
Step by Step Solution
- Step 1: Write the proportion equation
521,469,716.22 : 782,204,854.71 = 193,902,666.05 : x - Step 2: Convert to fraction form
521,469,716.22/782,204,854.71 = 193,902,666.05/x - Step 3: Cross multiply
521,469,716.22x = 782,204,854.71 × 193,902,666.05 - Step 4: Simplify right side
521,469,716.22x = 151,671,606,721,610,880 - Step 5: Solve for x
x = 151,671,606,721,610,880/521,469,716.22 - Step 6: Final answer
x = 290,854,103.32
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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.