Finding the Fourth Proportional to 18,240,997.21, 27,361,812.93 and 6,720,534.57
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Solution
The fourth proportional to 18,240,997.21, 27,361,812.93 and 6,720,534.57 is: 10,080,918.70
Step by Step Solution
- Step 1: Write the proportion equation
18,240,997.21 : 27,361,812.93 = 6,720,534.57 : x - Step 2: Convert to fraction form
18,240,997.21/27,361,812.93 = 6,720,534.57/x - Step 3: Cross multiply
18,240,997.21x = 27,361,812.93 × 6,720,534.57 - Step 4: Simplify right side
18,240,997.21x = 183,886,009,771,342.78 - Step 5: Solve for x
x = 183,886,009,771,342.78/18,240,997.21 - Step 6: Final answer
x = 10,080,918.70
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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.