Finding the Fourth Proportional to 14,605,879.71, 20,154,357.99 and 8,412,940.53
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Solution
The fourth proportional to 14,605,879.71, 20,154,357.99 and 8,412,940.53 is: 11,608,846.48
Step by Step Solution
- Step 1: Write the proportion equation
14,605,879.71 : 20,154,357.99 = 8,412,940.53 : x - Step 2: Convert to fraction form
14,605,879.71/20,154,357.99 = 8,412,940.53/x - Step 3: Cross multiply
14,605,879.71x = 20,154,357.99 × 8,412,940.53 - Step 4: Simplify right side
14,605,879.71x = 169,557,415,190,200.31 - Step 5: Solve for x
x = 169,557,415,190,200.31/14,605,879.71 - Step 6: Final answer
x = 11,608,846.48
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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.