Finding the Fourth Proportional to 6,489,987.62, 8,958,940.58 and 4,043,807.26
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Solution
The fourth proportional to 6,489,987.62, 8,958,940.58 and 4,043,807.26 is: 5,582,172.28
Step by Step Solution
- Step 1: Write the proportion equation
6,489,987.62 : 8,958,940.58 = 4,043,807.26 : x - Step 2: Convert to fraction form
6,489,987.62/8,958,940.58 = 4,043,807.26/x - Step 3: Cross multiply
6,489,987.62x = 8,958,940.58 × 4,043,807.26 - Step 4: Simplify right side
6,489,987.62x = 36,228,228,959,312.61 - Step 5: Solve for x
x = 36,228,228,959,312.61/6,489,987.62 - Step 6: Final answer
x = 5,582,172.28
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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.