Finding the Fourth Proportional to 219,675,236.81, 303,131,791.17 and 130,351,789.94
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Solution
The fourth proportional to 219,675,236.81, 303,131,791.17 and 130,351,789.94 is: 179,873,581.29
Step by Step Solution
- Step 1: Write the proportion equation
219,675,236.81 : 303,131,791.17 = 130,351,789.94 : x - Step 2: Convert to fraction form
219,675,236.81/303,131,791.17 = 130,351,789.94/x - Step 3: Cross multiply
219,675,236.81x = 303,131,791.17 × 130,351,789.94 - Step 4: Simplify right side
219,675,236.81x = 39,513,771,565,212,128 - Step 5: Solve for x
x = 39,513,771,565,212,128/219,675,236.81 - Step 6: Final answer
x = 179,873,581.29
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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.