Finding the Fourth Proportional to 13,135,828, 18,127,334.41 and 7,175,239.73
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Solution
The fourth proportional to 13,135,828, 18,127,334.41 and 7,175,239.73 is: 9,901,771.71
Step by Step Solution
- Step 1: Write the proportion equation
13,135,828 : 18,127,334.41 = 7,175,239.73 : x - Step 2: Convert to fraction form
13,135,828/18,127,334.41 = 7,175,239.73/x - Step 3: Cross multiply
13,135,828x = 18,127,334.41 × 7,175,239.73 - Step 4: Simplify right side
13,135,828x = 130,067,970,057,628.12 - Step 5: Solve for x
x = 130,067,970,057,628.12/13,135,828 - Step 6: Final answer
x = 9,901,771.71
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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.