Finding the Fourth Proportional to 18,508,460.79, 27,744,569.91 and 7,728,844.41
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Solution
The fourth proportional to 18,508,460.79, 27,744,569.91 and 7,728,844.41 is: 11,585,699.45
Step by Step Solution
- Step 1: Write the proportion equation
18,508,460.79 : 27,744,569.91 = 7,728,844.41 : x - Step 2: Convert to fraction form
18,508,460.79/27,744,569.91 = 7,728,844.41/x - Step 3: Cross multiply
18,508,460.79x = 27,744,569.91 × 7,728,844.41 - Step 4: Simplify right side
18,508,460.79x = 214,433,464,056,757.72 - Step 5: Solve for x
x = 214,433,464,056,757.72/18,508,460.79 - Step 6: Final answer
x = 11,585,699.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.