Finding the Fourth Proportional to 387,994,569.38, 535,352,576.98 and 222,950,252.42
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Solution
The fourth proportional to 387,994,569.38, 535,352,576.98 and 222,950,252.42 is: 307,625,419.50
Step by Step Solution
- Step 1: Write the proportion equation
387,994,569.38 : 535,352,576.98 = 222,950,252.42 : x - Step 2: Convert to fraction form
387,994,569.38/535,352,576.98 = 222,950,252.42/x - Step 3: Cross multiply
387,994,569.38x = 535,352,576.98 × 222,950,252.42 - Step 4: Simplify right side
387,994,569.38x = 119,356,992,170,273,728 - Step 5: Solve for x
x = 119,356,992,170,273,728/387,994,569.38 - Step 6: Final answer
x = 307,625,419.50
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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.