Finding the Fourth Proportional to 116,726,694.60, 161,102,433.30 and 79,032,763.08
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Solution
The fourth proportional to 116,726,694.60, 161,102,433.30 and 79,032,763.08 is: 109,078,480.17
Step by Step Solution
- Step 1: Write the proportion equation
116,726,694.60 : 161,102,433.30 = 79,032,763.08 : x - Step 2: Convert to fraction form
116,726,694.60/161,102,433.30 = 79,032,763.08/x - Step 3: Cross multiply
116,726,694.60x = 161,102,433.30 × 79,032,763.08 - Step 4: Simplify right side
116,726,694.60x = 12,732,370,442,610,404 - Step 5: Solve for x
x = 12,732,370,442,610,404/116,726,694.60 - Step 6: Final answer
x = 109,078,480.17
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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.