Finding the Fourth Proportional to 14,995,782.93, 20,694,381.21 and 8,380,080.62
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Solution
The fourth proportional to 14,995,782.93, 20,694,381.21 and 8,380,080.62 is: 11,564,623.44
Step by Step Solution
- Step 1: Write the proportion equation
14,995,782.93 : 20,694,381.21 = 8,380,080.62 : x - Step 2: Convert to fraction form
14,995,782.93/20,694,381.21 = 8,380,080.62/x - Step 3: Cross multiply
14,995,782.93x = 20,694,381.21 × 8,380,080.62 - Step 4: Simplify right side
14,995,782.93x = 173,420,582,817,341.25 - Step 5: Solve for x
x = 173,420,582,817,341.25/14,995,782.93 - Step 6: Final answer
x = 11,564,623.44
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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.