Finding the Fourth Proportional to 18,467,997.20, 27,701,995.80 and 9,964,941.20
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Solution
The fourth proportional to 18,467,997.20, 27,701,995.80 and 9,964,941.20 is: 14,947,411.80
Step by Step Solution
- Step 1: Write the proportion equation
18,467,997.20 : 27,701,995.80 = 9,964,941.20 : x - Step 2: Convert to fraction form
18,467,997.20/27,701,995.80 = 9,964,941.20/x - Step 3: Cross multiply
18,467,997.20x = 27,701,995.80 × 9,964,941.20 - Step 4: Simplify right side
18,467,997.20x = 276,048,759,269,646.94 - Step 5: Solve for x
x = 276,048,759,269,646.94/18,467,997.20 - Step 6: Final answer
x = 14,947,411.80
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1.5x scale
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.