Finding the Fourth Proportional to 18,105,169.86, 24,985,431.09 and 9,845,395.74
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Solution
The fourth proportional to 18,105,169.86, 24,985,431.09 and 9,845,395.74 is: 13,586,807.45
Step by Step Solution
- Step 1: Write the proportion equation
18,105,169.86 : 24,985,431.09 = 9,845,395.74 : x - Step 2: Convert to fraction form
18,105,169.86/24,985,431.09 = 9,845,395.74/x - Step 3: Cross multiply
18,105,169.86x = 24,985,431.09 × 9,845,395.74 - Step 4: Simplify right side
18,105,169.86x = 245,991,456,815,549.56 - Step 5: Solve for x
x = 245,991,456,815,549.56/18,105,169.86 - Step 6: Final answer
x = 13,586,807.45
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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.