Finding the Fourth Proportional to 12,299,682.16, 18,449,588.84 and 8,066,656.20
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Solution
The fourth proportional to 12,299,682.16, 18,449,588.84 and 8,066,656.20 is: 12,100,027.32
Step by Step Solution
- Step 1: Write the proportion equation
12,299,682.16 : 18,449,588.84 = 8,066,656.20 : x - Step 2: Convert to fraction form
12,299,682.16/18,449,588.84 = 8,066,656.20/x - Step 3: Cross multiply
12,299,682.16x = 18,449,588.84 × 8,066,656.20 - Step 4: Simplify right side
12,299,682.16x = 148,826,490,203,636.81 - Step 5: Solve for x
x = 148,826,490,203,636.81/12,299,682.16 - Step 6: Final answer
x = 12,100,027.32
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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.