Finding the Fourth Proportional to 121,717,800.36, 167,917,782.51 and 80,522,068.68
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Solution
The fourth proportional to 121,717,800.36, 167,917,782.51 and 80,522,068.68 is: 111,085,537.00
Step by Step Solution
- Step 1: Write the proportion equation
121,717,800.36 : 167,917,782.51 = 80,522,068.68 : x - Step 2: Convert to fraction form
121,717,800.36/167,917,782.51 = 80,522,068.68/x - Step 3: Cross multiply
121,717,800.36x = 167,917,782.51 × 80,522,068.68 - Step 4: Simplify right side
121,717,800.36x = 13,521,087,215,863,524 - Step 5: Solve for x
x = 13,521,087,215,863,524/121,717,800.36 - Step 6: Final answer
x = 111,085,537.00
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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.