Finding the Fourth Proportional to 438,519,558.65, 657,560,469.06 and 143,376,233.49
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Solution
The fourth proportional to 438,519,558.65, 657,560,469.06 and 143,376,233.49 is: 214,992,789.92
Step by Step Solution
- Step 1: Write the proportion equation
438,519,558.65 : 657,560,469.06 = 143,376,233.49 : x - Step 2: Convert to fraction form
438,519,558.65/657,560,469.06 = 143,376,233.49/x - Step 3: Cross multiply
438,519,558.65x = 657,560,469.06 × 143,376,233.49 - Step 4: Simplify right side
438,519,558.65x = 94,278,543,345,740,480 - Step 5: Solve for x
x = 94,278,543,345,740,480/438,519,558.65 - Step 6: Final answer
x = 214,992,789.92
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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.