Finding the Fourth Proportional to 8,681,342.06, 11,979,388.49 and 5,011,440.94
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Solution
The fourth proportional to 8,681,342.06, 11,979,388.49 and 5,011,440.94 is: 6,915,289.99
Step by Step Solution
- Step 1: Write the proportion equation
8,681,342.06 : 11,979,388.49 = 5,011,440.94 : x - Step 2: Convert to fraction form
8,681,342.06/11,979,388.49 = 5,011,440.94/x - Step 3: Cross multiply
8,681,342.06x = 11,979,388.49 × 5,011,440.94 - Step 4: Simplify right side
8,681,342.06x = 60,033,997,904,867.81 - Step 5: Solve for x
x = 60,033,997,904,867.81/8,681,342.06 - Step 6: Final answer
x = 6,915,289.99
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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.