Finding the Fourth Proportional to 19,987,355.21, 27,582,638.22 and 10,819,997.96
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Solution
The fourth proportional to 19,987,355.21, 27,582,638.22 and 10,819,997.96 is: 14,931,644.84
Step by Step Solution
- Step 1: Write the proportion equation
19,987,355.21 : 27,582,638.22 = 10,819,997.96 : x - Step 2: Convert to fraction form
19,987,355.21/27,582,638.22 = 10,819,997.96/x - Step 3: Cross multiply
19,987,355.21x = 27,582,638.22 × 10,819,997.96 - Step 4: Simplify right side
19,987,355.21x = 298,444,089,340,774.62 - Step 5: Solve for x
x = 298,444,089,340,774.62/19,987,355.21 - Step 6: Final answer
x = 14,931,644.84
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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.