Finding the Fourth Proportional to 12,190,647.32, 18,286,356.44 and 4,516,212.81
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Solution
The fourth proportional to 12,190,647.32, 18,286,356.44 and 4,516,212.81 is: 6,774,462.02
Step by Step Solution
- Step 1: Write the proportion equation
12,190,647.32 : 18,286,356.44 = 4,516,212.81 : x - Step 2: Convert to fraction form
12,190,647.32/18,286,356.44 = 4,516,212.81/x - Step 3: Cross multiply
12,190,647.32x = 18,286,356.44 × 4,516,212.81 - Step 4: Simplify right side
12,190,647.32x = 82,585,077,257,014.67 - Step 5: Solve for x
x = 82,585,077,257,014.67/12,190,647.32 - Step 6: Final answer
x = 6,774,462.02
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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.