Finding the Fourth Proportional to 13,108,973.97, 18,091,460.97 and 7,229,757.96
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Solution
The fourth proportional to 13,108,973.97, 18,091,460.97 and 7,229,757.96 is: 9,977,659.90
Step by Step Solution
- Step 1: Write the proportion equation
13,108,973.97 : 18,091,460.97 = 7,229,757.96 : x - Step 2: Convert to fraction form
13,108,973.97/18,091,460.97 = 7,229,757.96/x - Step 3: Cross multiply
13,108,973.97x = 18,091,460.97 × 7,229,757.96 - Step 4: Simplify right side
13,108,973.97x = 130,796,883,955,886.81 - Step 5: Solve for x
x = 130,796,883,955,886.81/13,108,973.97 - Step 6: Final answer
x = 9,977,659.90
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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.