Finding the Fourth Proportional to 2,618,315,048.87, 3,613,273,813.04 and 1,428,884,020.38
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Solution
The fourth proportional to 2,618,315,048.87, 3,613,273,813.04 and 1,428,884,020.38 is: 1,971,859,427.28
Step by Step Solution
- Step 1: Write the proportion equation
2,618,315,048.87 : 3,613,273,813.04 = 1,428,884,020.38 : x - Step 2: Convert to fraction form
2,618,315,048.87/3,613,273,813.04 = 1,428,884,020.38/x - Step 3: Cross multiply
2,618,315,048.87x = 3,613,273,813.04 × 1,428,884,020.38 - Step 4: Simplify right side
2,618,315,048.87x = 5,162,949,212,710,368,256 - Step 5: Solve for x
x = 5,162,949,212,710,368,256/2,618,315,048.87 - Step 6: Final answer
x = 1,971,859,427.28
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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.