Finding the Fourth Proportional to 13,222,676.70, 18,246,404.25 and 7,342,008.66
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Solution
The fourth proportional to 13,222,676.70, 18,246,404.25 and 7,342,008.66 is: 10,131,477.99
Step by Step Solution
- Step 1: Write the proportion equation
13,222,676.70 : 18,246,404.25 = 7,342,008.66 : x - Step 2: Convert to fraction form
13,222,676.70/18,246,404.25 = 7,342,008.66/x - Step 3: Cross multiply
13,222,676.70x = 18,246,404.25 × 7,342,008.66 - Step 4: Simplify right side
13,222,676.70x = 133,965,258,017,360.81 - Step 5: Solve for x
x = 133,965,258,017,360.81/13,222,676.70 - Step 6: Final answer
x = 10,131,477.99
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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.