Finding the Fourth Proportional to 13,106,064.97, 18,086,453.59 and 7,305,214.51
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Solution
The fourth proportional to 13,106,064.97, 18,086,453.59 and 7,305,214.51 is: 10,081,242.80
Step by Step Solution
- Step 1: Write the proportion equation
13,106,064.97 : 18,086,453.59 = 7,305,214.51 : x - Step 2: Convert to fraction form
13,106,064.97/18,086,453.59 = 7,305,214.51/x - Step 3: Cross multiply
13,106,064.97x = 18,086,453.59 × 7,305,214.51 - Step 4: Simplify right side
13,106,064.97x = 132,125,423,109,677.31 - Step 5: Solve for x
x = 132,125,423,109,677.31/13,106,064.97 - Step 6: Final answer
x = 10,081,242.80
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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.