Finding the Fourth Proportional to 19,835,478.37, 27,372,038.77 and 11,015,489.62
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Solution
The fourth proportional to 19,835,478.37, 27,372,038.77 and 11,015,489.62 is: 15,200,863.99
Step by Step Solution
- Step 1: Write the proportion equation
19,835,478.37 : 27,372,038.77 = 11,015,489.62 : x - Step 2: Convert to fraction form
19,835,478.37/27,372,038.77 = 11,015,489.62/x - Step 3: Cross multiply
19,835,478.37x = 27,372,038.77 × 11,015,489.62 - Step 4: Simplify right side
19,835,478.37x = 301,516,408,949,172.56 - Step 5: Solve for x
x = 301,516,408,949,172.56/19,835,478.37 - Step 6: Final answer
x = 15,200,863.99
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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.