Finding the Fourth Proportional to 7,904,720.91, 11,847,929.99 and 3,635,930.19
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Solution
The fourth proportional to 7,904,720.91, 11,847,929.99 and 3,635,930.19 is: 5,449,685.93
Step by Step Solution
- Step 1: Write the proportion equation
7,904,720.91 : 11,847,929.99 = 3,635,930.19 : x - Step 2: Convert to fraction form
7,904,720.91/11,847,929.99 = 3,635,930.19/x - Step 3: Cross multiply
7,904,720.91x = 11,847,929.99 × 3,635,930.19 - Step 4: Simplify right side
7,904,720.91x = 43,078,246,321,467.74 - Step 5: Solve for x
x = 43,078,246,321,467.74/7,904,720.91 - Step 6: Final answer
x = 5,449,685.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.