Finding the Fourth Proportional to 378,418,610.70, 567,627,916.05 and 225,363,602.70
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Solution
The fourth proportional to 378,418,610.70, 567,627,916.05 and 225,363,602.70 is: 338,045,404.05
Step by Step Solution
- Step 1: Write the proportion equation
378,418,610.70 : 567,627,916.05 = 225,363,602.70 : x - Step 2: Convert to fraction form
378,418,610.70/567,627,916.05 = 225,363,602.70/x - Step 3: Cross multiply
378,418,610.70x = 567,627,916.05 × 225,363,602.70 - Step 4: Simplify right side
378,418,610.70x = 127,922,672,154,121,136 - Step 5: Solve for x
x = 127,922,672,154,121,136/378,418,610.70 - Step 6: Final answer
x = 338,045,404.05
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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.