Finding the Fourth Proportional to 378,789,668.16, 522,673,696.80 and 230,033,428.80
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Solution
The fourth proportional to 378,789,668.16, 522,673,696.80 and 230,033,428.80 is: 317,412,096.28
Step by Step Solution
- Step 1: Write the proportion equation
378,789,668.16 : 522,673,696.80 = 230,033,428.80 : x - Step 2: Convert to fraction form
378,789,668.16/522,673,696.80 = 230,033,428.80/x - Step 3: Cross multiply
378,789,668.16x = 522,673,696.80 × 230,033,428.80 - Step 4: Simplify right side
378,789,668.16x = 120,232,422,618,475,600 - Step 5: Solve for x
x = 120,232,422,618,475,600/378,789,668.16 - Step 6: Final answer
x = 317,412,096.28
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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.