Finding the Fourth Proportional to 77,201,078.40, 106,538,712.24 and 41,918,863.68
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Solution
The fourth proportional to 77,201,078.40, 106,538,712.24 and 41,918,863.68 is: 57,848,696.52
Step by Step Solution
- Step 1: Write the proportion equation
77,201,078.40 : 106,538,712.24 = 41,918,863.68 : x - Step 2: Convert to fraction form
77,201,078.40/106,538,712.24 = 41,918,863.68/x - Step 3: Cross multiply
77,201,078.40x = 106,538,712.24 × 41,918,863.68 - Step 4: Simplify right side
77,201,078.40x = 4,465,981,755,031,307 - Step 5: Solve for x
x = 4,465,981,755,031,307/77,201,078.40 - Step 6: Final answer
x = 57,848,696.52
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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.