Finding the Fourth Proportional to 11,478,342.48, 15,840,828.99 and 6,321,702.66
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Solution
The fourth proportional to 11,478,342.48, 15,840,828.99 and 6,321,702.66 is: 8,724,344.21
Step by Step Solution
- Step 1: Write the proportion equation
11,478,342.48 : 15,840,828.99 = 6,321,702.66 : x - Step 2: Convert to fraction form
11,478,342.48/15,840,828.99 = 6,321,702.66/x - Step 3: Cross multiply
11,478,342.48x = 15,840,828.99 × 6,321,702.66 - Step 4: Simplify right side
11,478,342.48x = 100,141,010,762,688.11 - Step 5: Solve for x
x = 100,141,010,762,688.11/11,478,342.48 - Step 6: Final answer
x = 8,724,344.21
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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.