Finding the Fourth Proportional to 8,857,607.20, 13,286,410.80 and 2,126,021.20
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Solution
The fourth proportional to 8,857,607.20, 13,286,410.80 and 2,126,021.20 is: 3,189,031.80
Step by Step Solution
- Step 1: Write the proportion equation
8,857,607.20 : 13,286,410.80 = 2,126,021.20 : x - Step 2: Convert to fraction form
8,857,607.20/13,286,410.80 = 2,126,021.20/x - Step 3: Cross multiply
8,857,607.20x = 13,286,410.80 × 2,126,021.20 - Step 4: Simplify right side
8,857,607.20x = 28,247,191,032,708.96 - Step 5: Solve for x
x = 28,247,191,032,708.96/8,857,607.20 - Step 6: Final answer
x = 3,189,031.80
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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.