Finding the Fourth Proportional to 11,478,359.48, 15,840,852.48 and 6,321,719.66
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Solution
The fourth proportional to 11,478,359.48, 15,840,852.48 and 6,321,719.66 is: 8,724,367.69
Step by Step Solution
- Step 1: Write the proportion equation
11,478,359.48 : 15,840,852.48 = 6,321,719.66 : x - Step 2: Convert to fraction form
11,478,359.48/15,840,852.48 = 6,321,719.66/x - Step 3: Cross multiply
11,478,359.48x = 15,840,852.48 × 6,321,719.66 - Step 4: Simplify right side
11,478,359.48x = 100,141,428,553,975.77 - Step 5: Solve for x
x = 100,141,428,553,975.77/11,478,359.48 - Step 6: Final answer
x = 8,724,367.69
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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.