Finding the Fourth Proportional to 21,160,561,167.67, 29,201,579,177.87 and 11,645,112,917.09
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Solution
The fourth proportional to 21,160,561,167.67, 29,201,579,177.87 and 11,645,112,917.09 is: 16,070,258,448.67
Step by Step Solution
- Step 1: Write the proportion equation
21,160,561,167.67 : 29,201,579,177.87 = 11,645,112,917.09 : x - Step 2: Convert to fraction form
21,160,561,167.67/29,201,579,177.87 = 11,645,112,917.09/x - Step 3: Cross multiply
21,160,561,167.67x = 29,201,579,177.87 × 11,645,112,917.09 - Step 4: Simplify right side
21,160,561,167.67x = 340,055,686,883,436,068,864 - Step 5: Solve for x
x = 340,055,686,883,436,068,864/21,160,561,167.67 - Step 6: Final answer
x = 16,070,258,448.67
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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.