Finding the Fourth Proportional to 12,296,725.05, 18,445,087.58 and 12,128,763.45
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Solution
The fourth proportional to 12,296,725.05, 18,445,087.58 and 12,128,763.45 is: 18,193,145.18
Step by Step Solution
- Step 1: Write the proportion equation
12,296,725.05 : 18,445,087.58 = 12,128,763.45 : x - Step 2: Convert to fraction form
12,296,725.05/18,445,087.58 = 12,128,763.45/x - Step 3: Cross multiply
12,296,725.05x = 18,445,087.58 × 12,128,763.45 - Step 4: Simplify right side
12,296,725.05x = 223,716,104,011,709.12 - Step 5: Solve for x
x = 223,716,104,011,709.12/12,296,725.05 - Step 6: Final answer
x = 18,193,145.18
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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.