Finding the Fourth Proportional to 864,775,863.63, 1,193,391,338.45 and 468,299,287.84
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Solution
The fourth proportional to 864,775,863.63, 1,193,391,338.45 and 468,299,287.84 is: 646,253,367.39
Step by Step Solution
- Step 1: Write the proportion equation
864,775,863.63 : 1,193,391,338.45 = 468,299,287.84 : x - Step 2: Convert to fraction form
864,775,863.63/1,193,391,338.45 = 468,299,287.84/x - Step 3: Cross multiply
864,775,863.63x = 1,193,391,338.45 × 468,299,287.84 - Step 4: Simplify right side
864,775,863.63x = 558,864,313,910,123,456 - Step 5: Solve for x
x = 558,864,313,910,123,456/864,775,863.63 - Step 6: Final answer
x = 646,253,367.39
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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.