Finding the Fourth Proportional to 498,844,847.10, 688,081,520.67 and 319,945,369.97
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Solution
The fourth proportional to 498,844,847.10, 688,081,520.67 and 319,945,369.97 is: 441,316,569.63
Step by Step Solution
- Step 1: Write the proportion equation
498,844,847.10 : 688,081,520.67 = 319,945,369.97 : x - Step 2: Convert to fraction form
498,844,847.10/688,081,520.67 = 319,945,369.97/x - Step 3: Cross multiply
498,844,847.10x = 688,081,520.67 × 319,945,369.97 - Step 4: Simplify right side
498,844,847.10x = 220,148,496,702,611,488 - Step 5: Solve for x
x = 220,148,496,702,611,488/498,844,847.10 - Step 6: Final answer
x = 441,316,569.63
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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.