Finding the Fourth Proportional to 490,187,350.67, 676,482,474.95 and 275,673,495.31
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Solution
The fourth proportional to 490,187,350.67, 676,482,474.95 and 275,673,495.31 is: 380,442,881.95
Step by Step Solution
- Step 1: Write the proportion equation
490,187,350.67 : 676,482,474.95 = 275,673,495.31 : x - Step 2: Convert to fraction form
490,187,350.67/676,482,474.95 = 275,673,495.31/x - Step 3: Cross multiply
490,187,350.67x = 676,482,474.95 × 275,673,495.31 - Step 4: Simplify right side
490,187,350.67x = 186,488,288,380,665,248 - Step 5: Solve for x
x = 186,488,288,380,665,248/490,187,350.67 - Step 6: Final answer
x = 380,442,881.95
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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.